{"title":"Astralpool \u0026 Zodiac Filter Spare Parts","description":"","products":[{"product_id":"hurlcon-astralpool-40mm-oring","title":"Astralpool \/ Hurlcon 40mm O-ring - HX, JX, 40mm MPV","description":"\u003ch3\u003eAstralpool \/ Hurlcon 40mm O-ring - HX, JX, 40mm MPV\u003c\/h3\u003e\u003cp\u003eGenuine Astralpool \/ Hurlcon 40mm union O-ring, part number \u003cstrong\u003e75109\u003c\/strong\u003e. Commonly used on the inlet and outlet unions of selected Astralpool and Hurlcon gas pool and spa heaters, including HX and JX series heaters.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSuits selected Astralpool \/ Hurlcon heaters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHurlcon \/ Astralpool HX 70 gas heater\u003c\/li\u003e\n\u003cli\u003eHurlcon \/ Astralpool HX 120 gas heater\u003c\/li\u003e\n\u003cli\u003eHurlcon \/ Astralpool HX 150 gas heater\u003c\/li\u003e\n\u003cli\u003eHurlcon \/ Astralpool JX 130 gas heater\u003c\/li\u003e\n\u003cli\u003eHurlcon \/ Astralpool JX 160 gas heater\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso used on selected 40mm Astralpool \/ Hurlcon applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e40mm barrel unions\u003c\/li\u003e\n\u003cli\u003e40mm union fittings on selected Astralpool \/ Hurlcon equipment\u003c\/li\u003e\n\u003cli\u003eSelected E-Series sand \/ media filter unions\u003c\/li\u003e\n\u003cli\u003eSome FG Fibreglass, RX and E-Series media filter 40mm union applications\u003c\/li\u003e\n\u003cli\u003eSome older Hurlcon \/ Astralpool 40mm multiport valve union applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease check the part number and measurements before ordering. Astralpool and Hurlcon used several similar-looking O-rings across heaters, filters, unions and multiport valves, so matching by size alone is not always enough.\u003c\/p\u003e\n\u003ch3\u003eApproximate measurements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutside diameter: approx. 66mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: approx. 58mm\u003c\/li\u003e\n\u003cli\u003eO-ring thickness \/ cross-section: approx. 4mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon search terms\u003c\/h3\u003e\n\u003cp\u003eAstralpool 75109 O-ring, Hurlcon 75109 O ring, HX 70 union O-ring, HX 120 union O-ring, HX 150 union O-ring, JX 130 union O-ring, JX 160 union O-ring, Astral 40mm union O-ring, Hurlcon 40mm union O-ring, E-Series filter O-ring, Astralpool heater union seal.\u003c\/p\u003e\n\u003ch3\u003eRelated spare parts\u003c\/h3\u003e\n\u003cp\u003e\n\u003ca href=\"https:\/\/melbournespaparts.com.au\/collections\/frontpage\/products\/hurlcon-astralpool-hx-wx-spare-parts-complete-listing\" title=\"Hurlcon Astralpool HX 70 HX 120 HX 150 spare parts\"\u003eHX Heater Spare Parts\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/melbournespaparts.com.au\/collections\/frontpage\/products\/hurlcon-astralpool-jx-wall-mount-gas-heater-spare-parts\" title=\"Hurlcon Astralpool JX 130 JX 160 Gas Heater Spare Parts\"\u003eJX Heater Spare Parts\u003c\/a\u003e\n\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eGenuine part number: 75109\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eInteractive Parts Diagrams\u003c\/h3\u003e\u003c!-- hasp-parts-diagrams --\u003e\u003cp style=\"font-size:16px;\"\u003eFind this part on our interactive heater parts diagrams — each one opens the full exploded view and parts list:\u003c\/p\u003e\u003cul\u003e\u003cli style=\"font-size:16px;\"\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/pages\/astralpool-hurlcon-hx-120-gas-heater-spare-parts-diagram-list\" style=\"color:#009BDB;font-weight:600;\"\u003eAstralpool \/ Hurlcon HX 120 Gas Heater — Diagram \u0026amp; Parts\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":521081585680,"sku":"75109","price":4.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-hurlcon-40mm-o-ring-hx-jx-mpv-gas-heater-parts-381.webp?v=1779162369"},{"product_id":"air-bleed-release","title":"Astralpool \/ Zodiac Air Bleed Plug D-Thread \u0026 O-Ring","description":"\u003c!-- HASP-FLP-1.0 | SKU 7870510 | product ZX air bleed plug + o-ring | rule ZXAB-1.0 | canary: zx-airbleed-echo-78705 --\u003e\u003ch3\u003eAstralpool \/ Zodiac Cartridge Filter Air Bleed Plug \u0026amp; O-Ring — D-Thread — 78705 \/ 78103\u003c\/h3\u003e\u003cp\u003eGenuine Astralpool \u003cstrong\u003eair bleed plug\u003c\/strong\u003e (air release \/ bleed screw) complete with its \u003cstrong\u003eO-ring\u003c\/strong\u003e, part numbers \u003cstrong\u003e78705 \/ 7870510\u003c\/strong\u003e (plug) and \u003cstrong\u003e78103\u003c\/strong\u003e (O-ring). It threads into the top of the filter to release trapped air on start-up. The twin-start \u003cstrong\u003e\"D\" thread\u003c\/strong\u003e is designed so the plug will not pop out under pressure. Fits the entire Astralpool \/ Hurlcon cartridge filter range and most other filters using the same common thread.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe 1\/4-inch BSP Thread Check\u003c\/h3\u003e\u003cp\u003eThis is a common-thread part, so it fits by \u003cstrong\u003ethread\u003c\/strong\u003e, not by filter model:\u003c\/p\u003e\u003col\u003e\n\u003cli\u003eLook at the threaded air-bleed port on top of your filter.\u003c\/li\u003e\n\u003cli\u003eIf it is the common \u003cstrong\u003e1\/4\" BSP (~13mm)\u003c\/strong\u003e thread, this plug and O-ring fit — whatever brand the filter is.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003eThe Zodiac ZXC is the Zodiac-badged Astralpool ZX, so ZXC filters use this plug too.\u003c\/p\u003e\u003ch3\u003eFits Across The Astralpool \/ Hurlcon Range\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstralpool \/ Hurlcon ZX \u0026amp; Zodiac ZXC \/ ZCF\u003c\/strong\u003e cartridge filters (ZX50 to ZX310)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstralpool \/ Hurlcon QX, CL, CF, UF, QL\u003c\/strong\u003e cartridge filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstral IX \/ IX50\u003c\/strong\u003e in-line leaf canisters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWWDG\u003c\/strong\u003e and many other brands using the same 1\/4\" BSP air-bleed thread\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBecause it is a common-thread part, it also suits many filters outside the Astralpool range — confirm your port is the 1\/4\" BSP (~13mm) thread and it will fit.\u003c\/p\u003e\u003ch3\u003eFitting Tip\u003c\/h3\u003e\u003cp\u003eUse a small amount of silicone lubricant on the thread to stop the plastic binding. Hand-tighten only.\u003c\/p\u003e\u003ch3\u003eAlso Need The Lid Or Tank Seal?\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters\"\u003eZX \/ ZXC lid assembly — SP7820502\u003c\/a\u003e · \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters\"\u003eZX \/ ZXC tank O-ring — 78110\u003c\/a\u003e · \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-zx-cartridge-filter-and-spare-parts\"\u003eFull ZX \/ ZXC range \u0026amp; spare parts\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003ePart Numbers \u0026amp; Search References\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePlug:\u003c\/strong\u003e 78705 \/ 7870510 · \u003cstrong\u003eO-ring:\u003c\/strong\u003e 78103 · \u003cstrong\u003eOld numbers:\u003c\/strong\u003e 78205, 78207 · air bleed plug · air release valve · bleed screw · D-thread air bleed · ZX filter air bleed · Zodiac ZXC air release · 1\/4 BSP cartridge filter bleed plug.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my filter?\u003c\/strong\u003e\u003cbr\u003eIf the air-bleed port on your filter is the common 1\/4\" BSP (~13mm) thread, yes. It fits the whole Astralpool \/ Hurlcon range and most other brands using that thread.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the D-thread?\u003c\/strong\u003e\u003cbr\u003eA twin-start thread that stops the plug being blown out under pressure, while still letting you open it by hand to bleed air.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it come with the O-ring?\u003c\/strong\u003e\u003cbr\u003eYes. The plug is supplied with its sealing O-ring (part 78103).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy filter is a Zodiac ZXC. Is this the right plug?\u003c\/strong\u003e\u003cbr\u003eYes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this plug fits.\u003c\/p\u003e\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information?\u003c\/strong\u003e See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eAs with all products, these must be diagnosed and fitted by a qualified and experienced person.\u003c\/p\u003e\u003c!-- \/HASP-FLP-1.0 78705 canary-end zx-airbleed-echo --\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/air-bleed-release#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will this fit my filter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If the air-bleed port on your filter is the common 1\/4 inch BSP (~13mm) thread, yes. It fits the whole Astralpool \/ Hurlcon range and most other brands using that thread.\"}},{\"@type\":\"Question\",\"name\":\"What is the D-thread?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A twin-start thread that stops the plug being blown out under pressure, while still letting you open it by hand to bleed air.\"}},{\"@type\":\"Question\",\"name\":\"Does it come with the O-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The plug is supplied with its sealing O-ring (part 78103).\"}},{\"@type\":\"Question\",\"name\":\"My filter is a Zodiac ZXC. Is this the right plug?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this plug fits.\"}}]}]}\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31491945594937,"sku":"7870510","price":5.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-air-bleed-plug-d-thread-o-ring-pool-spa-246.webp?v=1779173127"},{"product_id":"lid-for-astralpool-zx-smart-cartridge-filters","title":"Astralpool ZX \/ Zodiac ZCF Titan \/ Filtrite CF \/ Aquatight \/ Smart Filter Lid with Handles \u0026 Locking Ring","description":"\u003c!-- HASP-FLP-1.0 | SKU SP7820502 | product ZX lid assembly | rule ZXLID-1.0 | canary: zx-lid-echo-7820502 --\u003e\u003ch3\u003eAstralpool ZX \/ Zodiac ZXC \/ ZCF Cartridge Filter Lid Assembly with Locking Ring — SP7820502\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGenuine Astralpool \/ Hurlcon ZX cartridge filter lid assembly\u003c\/strong\u003e, supplied complete with locking ring, handles and air bleed assembly. Current manufacturer part number \u003cstrong\u003eSP7820502\u003c\/strong\u003e. This is the factory replacement lid used on Astralpool ZX, Hurlcon ZX, \u003cstrong\u003eZodiac ZXC\u003c\/strong\u003e, Zodiac ZCF \/ Titan ZCF, Astral Leisure Pools SMART, Filtrite CF, Aquatight and selected re-branded cartridge filters built on the ZX-style lid and tank design. The Zodiac ZXC is simply the Zodiac-badged Astralpool ZX.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse this lid assembly to replace a cracked, sun-perished, leaking or hard-to-tighten filter lid. These filters have been sold under several brand names across more than two decades, and both the lid colour and the part number have changed across production runs, so always check the model and physical size before ordering.\u003c\/p\u003e\u003ch3\u003eQuick Fit Check — 290mm Lid\u003c\/h3\u003e\u003cp\u003eThe ZX-style lid measures \u003cstrong\u003e290mm across the lid \/ locking ring\u003c\/strong\u003e. If your existing lid measures roughly 290mm, this is almost certainly the correct assembly. If it measures around 222mm you have the smaller \u003cstrong\u003eHurlcon QX\u003c\/strong\u003e lid, which is a different part and will not fit. Measure across the widest point of the moulded lid, not the tank rim.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete cartridge filter lid top\u003c\/li\u003e\n\u003cli\u003eNew locking ring (lock nut)\u003c\/li\u003e\n\u003cli\u003eLid handles and handle screws, factory fitted\u003c\/li\u003e\n\u003cli\u003eAir bleed assembly\u003c\/li\u003e\n\u003cli\u003eAir bleed O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant — supplied as an assembly only:\u003c\/strong\u003e Astralpool and Zodiac do \u003cstrong\u003enot\u003c\/strong\u003e supply the lid top and the locking ring as separate service items on this filter family. The complete lid assembly is the only genuine replacement path. If you have been quoted a \"lid only\" or \"lock ring only\" part elsewhere, it is either old superseded stock or a non-genuine copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eColour note:\u003c\/strong\u003e These lids have previously been supplied in grey, graphite, beige and black depending on age and brand. Current production is black. Colour may differ from the original lid fitted to your filter — the fit, thread and sealing surfaces are unchanged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes not include the large tank body O-ring.\u003c\/strong\u003e The main lid-to-tank O-ring (part 78110, previously 78105) is a separate item. If your lid and locking ring are still sound and the filter is only weeping at the seal, you likely need the O-ring alone — see the link further down this page.\u003c\/p\u003e\u003ch3\u003eCompatible Models \u0026amp; Matching Filter Elements\u003c\/h3\u003e\u003cp\u003eEach model below links to the matching replacement cartridge element we stock. Our elements are \u003cstrong\u003eDarlly aftermarket\u003c\/strong\u003e — OEM-equivalent media and end caps built to the original dimensions, not genuine Astralpool branded stock. Most customers replacing a lid are due for an element at the same time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAstralpool \/ Hurlcon ZX Series cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eZX50 \/ ZX 50 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-50-cartridge-filter-element\"\u003eelement 78095 replacement (290mm x 230mm)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX75 \/ ZX 75 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-75-cartridge-filter-element\"\u003eelement 78096 replacement (290mm x 230mm)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX100 \/ ZX 100 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-100-cartridge-filter-element\"\u003eelement 78097 replacement (495mm x 230mm)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX150 \/ ZX 150 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-150-cartridge-filter-element\"\u003eelement 78098 replacement\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX155 \/ ZX 155 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/zx310-cartridge\"\u003eelement 78088 replacement, supplied as a pair\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX200 \/ ZX 200 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-200-cartridge-filter-element\"\u003eelement 78099 replacement (688mm x 230mm)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX250 \/ ZX 250 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-250-cartridge-filter-element\"\u003eelement 78094 replacement (688mm x 230mm)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX310 \/ ZX 310 — \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/zx310-cartridge\"\u003eelement 78088 replacement, supplied as a pair\u003c\/a\u003e (joined with element joiner 78078)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eZodiac ZXC cartridge filters:\u003c\/strong\u003e ZXC50 to ZXC310 — the ZXC is the same filter as the Astralpool ZX, so use the matching ZX element above (e.g. ZXC100 uses the ZX100 element 78097).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eZodiac ZCF \/ Titan ZCF cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eZCF75 \/ ZCF 75 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-75-cartridge-filter-element\"\u003eZX75 \/ ZCF75 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZCF100 \/ ZCF 100 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-100-cartridge-filter-element\"\u003eZX100 \/ ZCF100 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZCF150 \/ ZCF 150 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-150-cartridge-filter-element\"\u003eZX150 \/ ZCF150 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZCF200 \/ ZCF 200 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-200-cartridge-filter-element\"\u003eZX200 \/ ZCF200 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAstral Leisure Pools SMART cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSMART 350 \/ Smart 350 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-75-cartridge-filter-element\"\u003eZX75 \/ Smart 350 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSMART 450 \/ Smart 450 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-150-cartridge-filter-element\"\u003eZX150 \/ Smart 450 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSMART 550 \/ Smart 550 — uses the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-75-cartridge-filter-element\"\u003eZX75 \/ Smart 550 element\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAlso commonly cross-referenced with selected re-branded ZX-style filters, including:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFiltrite CF50 \/ CF 50, CF75, CF100, CF150, CF200, CF250\u003c\/li\u003e\n\u003cli\u003eSpaPro X50, X100, X150, X200\u003c\/li\u003e\n\u003cli\u003eWWDG CF100, CF150, CF200\u003c\/li\u003e\n\u003cli\u003eAquatight cartridge filters using the ZX-style tank\u003c\/li\u003e\n\u003cli\u003eAstral IX \/ IX50 inline leaf canisters where the same ZX-style lid assembly is used\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWill not fit:\u003c\/strong\u003e Hurlcon QX (222mm lid), Hurlcon CL, Astral GX, Zodiac CF \/ Emaux \/ Waterlinx \/ Magnaflow cartridge filters, and \u003cstrong\u003eAstralpool XC\u003c\/strong\u003e (a separate, unrelated filter series). These use different lid diameters and thread forms despite similar appearance.\u003c\/p\u003e\u003ch3\u003ePart Numbers, Superseded Numbers \u0026amp; Search References\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCurrent part number:\u003c\/strong\u003e SP7820502\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSuperseded and legacy numbers this assembly replaces:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e7820502 \/ SP 7820502\u003c\/li\u003e\n\u003cli\u003eSP7848210 \/ 7848210\u003c\/li\u003e\n\u003cli\u003eSP7848110 \/ 7848110\u003c\/li\u003e\n\u003cli\u003e7820510\u003c\/li\u003e\n\u003cli\u003e7820102 (lid top only — no longer supplied separately)\u003c\/li\u003e\n\u003cli\u003eAPA302685 \/ APA_302-685\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCommon search terms:\u003c\/strong\u003e Astralpool ZX filter lid, Hurlcon ZX filter lid, Zodiac ZXC filter lid, Zodiac ZCF filter lid, Titan ZCF filter lid, Astral SMART filter lid, Filtrite CF filter lid, ZX cartridge filter lid and locking ring, ZXC cartridge filter lid and locking ring, ZX filter lid with handles, 290mm pool filter lid, Astral pool filter lock ring.\u003c\/p\u003e\u003ch3\u003eComplete ZX Cartridge Filter Spare Parts Reference\u003c\/h3\u003e\u003cp\u003eTaken from the Astralpool spare parts catalogue for the ZX cartridge filter, for cross-referencing while you have the filter apart:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete lid assembly\u003c\/strong\u003e — SP7820502 (this item)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid O-ring (tank seal)\u003c\/strong\u003e — 78105 \/ 78110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid handles\u003c\/strong\u003e — 7820202 (×2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle screws\u003c\/strong\u003e — 40218 (×4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir bleed \/ drain plug\u003c\/strong\u003e — 78705 \/ 7870510 (older references 78205, 78207)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir bleed \u0026amp; drain plug O-ring\u003c\/strong\u003e — 78103\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure gauge with cover\u003c\/strong\u003e — 75043\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX50 \/ ZX75\u003c\/strong\u003e — 7821102 (78380)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX100 \/ ZX150\u003c\/strong\u003e — 7821202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX200 \/ ZX250\u003c\/strong\u003e — 7821302\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX310\u003c\/strong\u003e — 7821702\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement joiner, ZX310 only\u003c\/strong\u003e — 78078\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement locating spigot\u003c\/strong\u003e — 78203\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlanking cap 50mm\u003c\/strong\u003e — 78214\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlanking cap with drain\u003c\/strong\u003e — 78218\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlue-in threaded pipe fitting\u003c\/strong\u003e — 950923\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion O-ring\u003c\/strong\u003e — 70003\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm glue-in union tail\u003c\/strong\u003e — 950920 | \u003cstrong\u003e40mm glue-in union tail\u003c\/strong\u003e — 950918\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion lock nut\u003c\/strong\u003e — 950919\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete 40mm union\u003c\/strong\u003e — 10649 | \u003cstrong\u003eComplete 50mm union\u003c\/strong\u003e — 10650\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent bag\u003c\/strong\u003e — 78328\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstruction manual\u003c\/strong\u003e — INST247\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Replace The Filter Lid?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplace a cracked, sun-damaged or brittle lid\u003c\/li\u003e\n\u003cli\u003eFix leaks from the lid or locking ring area\u003c\/li\u003e\n\u003cli\u003eRestore correct sealing and filter pressure\u003c\/li\u003e\n\u003cli\u003eReplace a damaged, cross-threaded or hard-to-tighten locking ring\u003c\/li\u003e\n\u003cli\u003eReplace snapped or missing lid handles that make the ring impossible to undo\u003c\/li\u003e\n\u003cli\u003eReduce the chance of air being drawn into the filtration system\u003c\/li\u003e\n\u003cli\u003eHelp prevent unsafe operation of a damaged pressurised filter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eZX-family lids are a wear item in Australian conditions. UV exposure, chlorine vapour inside the tank and repeated over-tightening all embrittle the moulding over time. A lid that has started to craze, or a locking ring that grinds rather than turns smoothly, is on borrowed time — these are pressure vessels and a lid failure under pressure is not a small event.\u003c\/p\u003e\u003ch3\u003eFitting Notes \u0026amp; Safety\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNever loosen the locking ring while the pump is running.\u003c\/strong\u003e Shut the pump down, isolate power, close any valves and release all pressure via the air bleed before touching the lid.\u003c\/li\u003e\n\u003cli\u003eWind the air bleed open and confirm the pressure gauge reads zero before undoing the ring.\u003c\/li\u003e\n\u003cli\u003eClean the tank rim, the O-ring groove and the ring threads thoroughly. Grit in the threads is the single most common cause of a lid that will not seat.\u003c\/li\u003e\n\u003cli\u003eLubricate the tank O-ring with a silicone-based lubricant only. Petroleum jelly and mineral greases attack the rubber and swell the seal.\u003c\/li\u003e\n\u003cli\u003eHand tighten the locking ring only. Do not use a strap wrench, lever bar or hammer — over-tightening is what destroys most rings and lids.\u003c\/li\u003e\n\u003cli\u003eOn start-up, open the air bleed two to three turns until water flows steadily, then close it. Note the clean starting pressure on the gauge.\u003c\/li\u003e\n\u003cli\u003eClean the element when pressure rises 15–20 kPa above that clean starting figure, or when return flow drops off.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eZX-series tanks are rated to a maximum working pressure in the 250–300 kPa range depending on model and revision. If your gauge is sitting anywhere near that, stop and diagnose the restriction before running the filter.\u003c\/p\u003e\u003ch3\u003eNeed The Large Tank O-Ring?\u003c\/h3\u003e\u003cp\u003eThis lid assembly does not include the large tank body O-ring. If your existing lid and locking ring are still serviceable but the filter is leaking around the seal, you may only need the O-ring. It is good practice to fit a new tank O-ring whenever you fit a new lid — the old seal has taken a set to the old lid's sealing face.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters\"\u003eClick here for the Astralpool ZX \/ ZXC cartridge filter tank O-ring — 78110\u003c\/a\u003e. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/air-bleed-release\"\u003eClick here for the replacement air bleed plug and O-ring\u003c\/a\u003e. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-zx-cartridge-filter-and-spare-parts\"\u003eClick here for the full Astralpool ZX \/ Zodiac ZXC cartridge filter and spare parts range\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan I buy just the locking ring, or just the lid?\u003c\/strong\u003e\u003cbr\u003eNo. Astralpool and Zodiac only supply this as a complete lid assembly. The lid, ring, handles and air bleed come together under SP7820502.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy old lid is beige or grey and this one is black. Will it still fit?\u003c\/strong\u003e\u003cbr\u003eYes. Colour has changed several times across production runs. The moulding, thread and sealing dimensions are unchanged. Current production is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the Zodiac ZXC, ZCF or Titan ZCF?\u003c\/strong\u003e\u003cbr\u003eYes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, and the Zodiac ZCF \/ Titan ZCF share the same lid and tank architecture, so the same assembly services all of them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the replacement elements genuine Astralpool?\u003c\/strong\u003e\u003cbr\u003eNo. This lid assembly is a genuine Astralpool part, but the cartridge elements we link to are Darlly aftermarket — built to the original dimensions with equivalent media, at a lower price than branded stock. If you specifically need genuine Astralpool elements, contact us and we can quote them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy ZX filter is discontinued — can I still get parts?\u003c\/strong\u003e\u003cbr\u003eYes. The ZX range itself has been superseded, but the serviceable parts including this lid assembly, elements, O-rings and gauges are still available. Replacing a lid on an otherwise sound tank is far cheaper than replacing the filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a new tank O-ring at the same time?\u003c\/strong\u003e\u003cbr\u003eStrongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if mine is a ZX-style lid?\u003c\/strong\u003e\u003cbr\u003eMeasure the lid across its widest point. ZX-style is approximately 290mm. The Hurlcon QX is approximately 222mm and is a different part entirely.\u003c\/p\u003e\u003ch3\u003eCheck Before Ordering\u003c\/h3\u003e\u003cp\u003eBecause these filters were sold under different brands, model names and colours, compare the shape of your existing lid, locking ring and filter body before ordering, and confirm the 290mm measurement. If you are unsure, send us a photo of the filter label, lid and tank and we can help confirm the correct part. We would rather spend two minutes checking than have you fit the wrong lid to a pressurised vessel.\u003c\/p\u003e\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information?\u003c\/strong\u003e See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\u003c!-- \/HASP-FLP-1.0 SP7820502 canary-end zx-lid-echo --\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Can I buy just the locking ring, or just the lid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Astralpool and Zodiac only supply this as a complete lid assembly. The lid, ring, handles and air bleed come together under SP7820502.\"}},{\"@type\":\"Question\",\"name\":\"My old lid is beige or grey and this one is black. Will it still fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Colour has changed several times across production runs. The moulding, thread and sealing dimensions are unchanged. Current production is black.\"}},{\"@type\":\"Question\",\"name\":\"Does this fit the Zodiac ZXC, ZCF or Titan ZCF?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, and the Zodiac ZCF \/ Titan ZCF share the same lid and tank architecture, so the same assembly services all of them.\"}},{\"@type\":\"Question\",\"name\":\"Are the replacement elements genuine Astralpool?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. This lid assembly is a genuine Astralpool part, but the cartridge elements we link to are Darlly aftermarket — built to the original dimensions with equivalent media, at a lower price than branded stock. If you specifically need genuine Astralpool elements, contact us and we can quote them.\"}},{\"@type\":\"Question\",\"name\":\"My ZX filter is discontinued — can I still get parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The ZX range itself has been superseded, but the serviceable parts including this lid assembly, elements, O-rings and gauges are still available. Replacing a lid on an otherwise sound tank is far cheaper than replacing the filter.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a new tank O-ring at the same time?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Strongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\"}},{\"@type\":\"Question\",\"name\":\"How do I know if mine is a ZX-style lid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Measure the lid across its widest point. ZX-style is approximately 290mm. The Hurlcon QX is approximately 222mm and is a different part entirely.\"}}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters#howto\",\"name\":\"How to replace the lid assembly on an Astralpool ZX cartridge filter\",\"step\":[{\"@type\":\"HowToStep\",\"name\":\"Depressurise\",\"text\":\"Shut down the pump, isolate power, close the valves and open the air bleed until the gauge reads zero.\"},{\"@type\":\"HowToStep\",\"name\":\"Remove the old lid\",\"text\":\"Undo the locking ring by hand and lift off the old lid. Clean the tank rim, O-ring groove and ring threads of all grit.\"},{\"@type\":\"HowToStep\",\"name\":\"Fit a new tank O-ring\",\"text\":\"Fit a new tank O-ring (78110) into the groove and lubricate it with a silicone-based lubricant only.\"},{\"@type\":\"HowToStep\",\"name\":\"Fit the new lid assembly\",\"text\":\"Place the new SP7820502 lid assembly on the tank and hand-tighten the locking ring only. Do not use a wrench or lever.\"},{\"@type\":\"HowToStep\",\"name\":\"Recommission\",\"text\":\"Open the air bleed on start-up until water flows steadily, close it, and note the clean starting pressure on the gauge.\"}]}]}\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31552026279993,"sku":"SP7820502","price":229.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zx-zodiac-zcf-titan-filtrite-cf-aquatight-smart-filter-lid-with-handles-locking-ring-pool-spa-266.webp?v=1784544068"},{"product_id":"o-ring-for-astralpool-hurlcon-zx-cartridge-filters","title":"Astralpool ZX \/ Zodiac ZCF Cartrildge Filter O-Ring Seal - MKII","description":"\u003c!-- HASP-FLP-1.0 | SKU 78110 | product ZX tank o-ring | rule ZXO-1.0 | canary: zx-oring-echo-78110 --\u003e\u003ch3\u003eAstralpool ZX \/ Zodiac ZXC Cartridge Filter Lid O-Ring (Tank Seal) — 78110 \/ 78105\u003c\/h3\u003e\u003cp\u003eThis is the genuine Astralpool \u003cstrong\u003elid O-ring\u003c\/strong\u003e — also called the \u003cstrong\u003etank O-ring\u003c\/strong\u003e or \u003cstrong\u003elid seal\u003c\/strong\u003e — for the \u003cstrong\u003eZX-family cartridge filter\u003c\/strong\u003e, current part number \u003cstrong\u003e78110\u003c\/strong\u003e (old number \u003cstrong\u003e78105\u003c\/strong\u003e). It seals the filter lid to the tank body. One O-ring fits the whole ZX range. Replace it if the filter lid is leaking, weeping, drawing air or hard to tighten, or if the old seal is flattened, cracked, stretched or perished.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis is the same filter sold under several brands — Astralpool ZX, Hurlcon ZX, \u003cstrong\u003eZodiac ZXC\u003c\/strong\u003e, Zodiac ZCF \/ Titan ZCF, Astral SMART, Filtrite CF and Aquatight. The Zodiac ZXC is simply the Zodiac-badged Astralpool ZX.\u003c\/p\u003e\u003ch3\u003eIdentification\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eGenuine Astralpool part\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent part number:\u003c\/strong\u003e 78110\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOld \/ superseded number:\u003c\/strong\u003e 78105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate size:\u003c\/strong\u003e 280mm outside diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-section:\u003c\/strong\u003e approximately 5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram reference:\u003c\/strong\u003e Item 4 on many ZX diagrams, Item 7 on some ZCF diagrams\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFits Across The ZX Range\u003c\/h3\u003e\u003cp\u003eOne tank O-ring fits every ZX-family filter, from the ZX50 to the ZX310:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstralpool ZX \/ Hurlcon ZX:\u003c\/strong\u003e ZX50 to ZX310\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZodiac ZXC:\u003c\/strong\u003e ZXC50 to ZXC310\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZodiac ZCF \/ Titan ZCF:\u003c\/strong\u003e ZCF75 to ZCF200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstral SMART:\u003c\/strong\u003e SMART 350 \/ 450 \/ 550\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltrite CF \/ Aquatight:\u003c\/strong\u003e ZX-style cartridge filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstral IX \/ IX50\u003c\/strong\u003e in-line leaf canister (same tank O-ring)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Note\u003c\/h3\u003e\u003cp\u003eClean the lid and tank sealing groove before fitting the new O-ring — dirt, grit, old lubricant and calcium build-up will stop the lid sealing correctly. Apply a light smear of \u003cstrong\u003esilicone-based O-ring lubricant\u003c\/strong\u003e before refitting. Do not use petroleum grease, as it swells and damages rubber seals. It is good practice to fit a new O-ring whenever you fit a new lid, since the old seal has taken a set to the old lid's sealing face.\u003c\/p\u003e\u003ch3\u003eWhen To Replace This O-Ring\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWater leaks or weeps from around the filter lid\u003c\/li\u003e\n\u003cli\u003eThe lid is hard to tighten or does not seat smoothly\u003c\/li\u003e\n\u003cli\u003eThe pump draws air through the filter lid\u003c\/li\u003e\n\u003cli\u003eThe old O-ring is flat, brittle, cracked, swollen or stretched\u003c\/li\u003e\n\u003cli\u003eThe lid has been off for cartridge cleaning and the seal no longer sits properly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNeed The Complete Lid Assembly?\u003c\/h3\u003e\u003cp\u003eIf the lid, locking ring or handles are also damaged, you may need the complete lid assembly rather than just the O-ring. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters\"\u003eClick here for the Astralpool ZX \/ ZXC cartridge filter lid assembly — SP7820502\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eWill Not Fit\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHurlcon QX\u003c\/strong\u003e — a different filter with a 222mm lid.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAstralpool XC\u003c\/strong\u003e — a separate, unrelated filter series. \u003ca href=\"mailto:info@hasp.com.au\"\u003eContact us\u003c\/a\u003e with your model and a photo.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePart Numbers \u0026amp; Search References\u003c\/h3\u003e\u003cp\u003e78110 · 78105 · O Ring Lid ZX Filter MK2 · ZX cartridge filter lid O-ring · ZX cartridge filter tank O-ring · ZCF cartridge filter lid O-ring · Zodiac ZXC lid seal · Astralpool ZX lid seal · Hurlcon ZX lid seal · 280mm cartridge filter O-ring.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes one O-ring fit all ZX filters?\u003c\/strong\u003e\u003cbr\u003eYes. The same tank O-ring, part 78110, fits every ZX-family filter from the ZX50 to the ZX310.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy filter is a Zodiac ZXC. Is this the right O-ring?\u003c\/strong\u003e\u003cbr\u003eYes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this O-ring fits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy filter is an Astralpool XC. Is this the right O-ring?\u003c\/strong\u003e\u003cbr\u003eNo. The XC is a separate, unrelated filter series and does not use the ZX tank O-ring. Contact us with your model and a photo and we will match the correct part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a new O-ring if I am fitting a new lid?\u003c\/strong\u003e\u003cbr\u003eStrongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat lubricant should I use?\u003c\/strong\u003e\u003cbr\u003eA silicone-based O-ring lubricant only. Never use petroleum grease, which swells and destroys the rubber.\u003c\/p\u003e\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information?\u003c\/strong\u003e See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eAs with all products, these must be diagnosed and fitted by a qualified and experienced person.\u003c\/p\u003e\u003c!-- \/HASP-FLP-1.0 78110 canary-end zx-oring-echo --\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Does one O-ring fit all ZX filters?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The same tank O-ring, part 78110, fits every ZX-family filter from the ZX50 to the ZX310.\"}},{\"@type\":\"Question\",\"name\":\"My filter is a Zodiac ZXC. Is this the right O-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this O-ring fits.\"}},{\"@type\":\"Question\",\"name\":\"My filter is an Astralpool XC. Is this the right O-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The XC is a separate, unrelated filter series and does not use the ZX tank O-ring. Contact us with your model and a photo and we will match the correct part.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a new O-ring if I am fitting a new lid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Strongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\"}},{\"@type\":\"Question\",\"name\":\"What lubricant should I use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A silicone-based O-ring lubricant only. Never use petroleum grease, which swells and destroys the rubber.\"}}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters#howto\",\"name\":\"How to fit the tank O-ring on an Astralpool ZX cartridge filter\",\"step\":[{\"@type\":\"HowToStep\",\"name\":\"Depressurise and open\",\"text\":\"Shut down the pump, isolate power, release pressure at the air bleed, then undo the locking ring and lift off the lid.\"},{\"@type\":\"HowToStep\",\"name\":\"Remove the old O-ring\",\"text\":\"Lift out the old tank O-ring and clean the groove and sealing faces of grit, old lubricant and calcium.\"},{\"@type\":\"HowToStep\",\"name\":\"Fit and lubricate the new O-ring\",\"text\":\"Seat the new 78110 O-ring in the groove and apply a light smear of silicone-based lubricant. Do not use petroleum grease.\"},{\"@type\":\"HowToStep\",\"name\":\"Refit and recommission\",\"text\":\"Refit the lid, hand-tighten the locking ring, then open the air bleed on start-up until water flows and note the clean starting pressure.\"}]}]}\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31552038797369,"sku":"78110","price":36.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zx-zodiac-zcf-cartrildge-filter-o-ring-seal-mkii-parts-560.webp?v=1781011086"},{"product_id":"astral-65mm-oring","title":"Astralpool O-Ring 78104 - Pump Diffuser, 65mm Union Tail \u0026 Chlorinator Cell (BX\/CX\/TX\/E\/Viron XT)","description":"\u003c!-- HASP-FLP-1.0 | SKU 78104 | rule ORING-1.0 | canary: one-ring-three-jobs --\u003e\n\u003ch3\u003eAstralpool O-Ring 78104 - Pump Diffuser, 65mm Union Tail \u0026amp; Chlorinator Cell\u003c\/h3\u003e\n\u003cp\u003eThis is the genuine Astralpool o-ring, part number \u003cstrong\u003e78104\u003c\/strong\u003e. One o-ring does three jobs across the Astral \/ Hurlcon range: it is the \u003cstrong\u003epump diffuser o-ring\u003c\/strong\u003e, the \u003cstrong\u003e65mm union tail o-ring\u003c\/strong\u003e, and the \u003cstrong\u003echlorinator \/ salt cell body o-ring\u003c\/strong\u003e. Despite being sold as a “65mm o-ring” it is not 65mm in diameter — it measures approximately \u003cstrong\u003e95mm outside diameter with a 5.2mm cross section\u003c\/strong\u003e. The 65mm refers to the union it seals, not the ring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat This O-Ring Does — Three Roles, One Part\u003c\/h3\u003e\n\u003cp\u003eIf any listing or parts diagram points you at 78104 for any of the following, this is the correct part:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump diffuser o-ring\u003c\/strong\u003e — seals the diffuser to the volute on BX, CX, TX, E-Series, P280, P300, P320, P600 and Viron XT (P320 \/ P520) pumps. It seals both the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/sp-bx-ctx-e-diffuser-small\"\u003esmall diffuser 40071A\u003c\/a\u003e and the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/diffuser-xp-ctx-bx-large\"\u003elarge diffuser 40071B\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65mm union tail o-ring\u003c\/strong\u003e — seals the barrel union tails on BX, XP, P300 and P600 pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinator \/ salt cell o-ring\u003c\/strong\u003e — the cell body \/ cell nut o-ring for VX, Viron, eQuilibrium and Filtrite chlorinators, Rolachem mixing cells, and older probe bodies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe 95mm Rule (rev. ORING-1.0)\u003c\/h3\u003e\n\u003cp\u003eThe single most common mistake is ordering by the “65mm” name and expecting a 65mm ring. Confirm by measurement, not by name:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eLay the old o-ring flat and measure across the outside edge to outside edge.\u003c\/strong\u003e The 78104 is approximately \u003cstrong\u003e95mm outside diameter\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasure the thickness of the rubber (cross section).\u003c\/strong\u003e The 78104 is approximately \u003cstrong\u003e5.2mm\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf it measures ~95mm OD, this is your part\u003c\/strong\u003e whether it came off a diffuser, a union tail, or a chlorinator cell. If it is a smaller union o-ring, you likely need the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/pump-union-tail-fittings-50mm\"\u003e50mm union tail o-ring 78303\u003c\/a\u003e instead.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eWorked Example\u003c\/h3\u003e\n\u003cp\u003eA Viron XT P320 stripped for a mechanical seal replacement had a flattened, glazed o-ring sitting between the diffuser and the volute. Measured flat it was 94.8mm across the outside and 5.1mm thick — within tolerance of the 78104 figures — so the same o-ring that seals the owner’s VX chlorinator cell was the correct diffuser seal. It was replaced at the same time as the diffuser and mechanical seal, since a hardened diffuser o-ring lets water bypass the impeller and drops flow even with a good impeller fitted.\u003c\/p\u003e\n\n\u003ch3\u003eConfirmed Compatibility\u003c\/h3\u003e\n\u003cp\u003eAstral \/ Hurlcon list 78104 across:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump diffusers\u003c\/strong\u003e — BX, CX, TX, E-Series, P280, P300, P320, P600, Viron XT P320 \u0026amp; P520\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion tails\u003c\/strong\u003e — BX, XP, P300, P600 (65mm barrel union)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinator \/ salt cells\u003c\/strong\u003e — VX6, VX7, VX9, VX11, VX13, E25, E35, V18, V25, V35, V45, eQ18, eQ25, eQ35, eQ45, and Viron \/ eQuilibrium \/ Filtrite cell bodies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRolachem\u003c\/strong\u003e mixing cells and older probe bodies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40071A\u003c\/strong\u003e — small diffuser, CTX 180-400 \/ BX \/ E \/ Viron XT P320 (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/sp-bx-ctx-e-diffuser-small\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40071B\u003c\/strong\u003e — large diffuser, CTX 500\/610 \/ Viron XT P520 \/ BX large (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/diffuser-xp-ctx-bx-large\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e78303\u003c\/strong\u003e — 50mm union tail o-ring, CTX \/ CX \/ TX \/ E-Series (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/pump-union-tail-fittings-50mm\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75508 \/ PS3868\u003c\/strong\u003e — mechanical seal, BX \/ TX \/ CX \/ E \/ CTX (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/3-4-mechanical-seal\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cp\u003eReplace the o-ring whenever it is flattened, glazed, cracked, or has taken a permanent set, and any time the diffuser, union or cell it seals is opened up. An o-ring is cheap; a leak past a hardened one is not. On a diffuser it should be replaced with the diffuser and mechanical seal; on a chlorinator it should be replaced whenever the cell is opened for cleaning or cell replacement.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this really 65mm?\u003c\/strong\u003e\u003cbr\u003eNo. It is named for the 65mm union it seals, but the o-ring itself is approximately 95mm outside diameter with a 5.2mm cross section. Measure the old ring flat to confirm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the diffuser o-ring the same as the chlorinator cell o-ring?\u003c\/strong\u003e\u003cbr\u003eYes. Astral \/ Hurlcon use the same 78104 o-ring for the pump diffuser, the 65mm union tail, and the chlorinator \/ salt cell body. One part covers all three.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the Viron XT diffuser?\u003c\/strong\u003e\u003cbr\u003eYes. 78104 is the diffuser o-ring for the Viron XT P320 and P520, and appears in the Viron XT MkII parts diagram. It seals both the small 40071A and large 40071B diffusers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich pumps use this as the diffuser o-ring?\u003c\/strong\u003e\u003cbr\u003eBX, CX, TX, E-Series, P280, P300, P320, P600 and Viron XT P320 \/ P520.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy union o-ring is smaller than 95mm — what do I need?\u003c\/strong\u003e\u003cbr\u003eYou likely have the 50mm union, which takes o-ring 78303. Measure the old ring flat to confirm before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a genuine Astralpool part?\u003c\/strong\u003e\u003cbr\u003eYes. We are an authorised Astralpool and Fluidra dealer and warranty agent, and this is the genuine 78104 o-ring.\u003c\/p\u003e\n\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\u003cp\u003eNeed exploded views, spare part numbers, product numbers or diagrams? See the manufacturer catalogue: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e confirm this part is correct for your equipment. Use the catalogue above, seek professional assistance, or \u003ca href=\"mailto:info@hasp.com.au\"\u003econtact us\u003c\/a\u003e with photos of your existing part, model details, serial numbers and any labels. As with all products, this must be diagnosed and fitted by a qualified and experienced person.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCommon search terms: Astralpool 78104, 78104 diffuser o-ring, Hurlcon diffuser o-ring, Viron XT diffuser o-ring, 65mm tail union o-ring, VX chlorinator cell o-ring, Astral cell o-ring 95mm, BX P600 union o-ring, WWDG SpaPro.\u003c\/em\u003e\u003c\/p\u003e\n\u003c!-- HASP-FLP-1.0 end | canary: one-ring-three-jobs --\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is this really 65mm?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. It is named for the 65mm union it seals, but the o-ring itself is approximately 95mm outside diameter with a 5.2mm cross section. Measure the old ring flat to confirm.\"}},{\"@type\":\"Question\",\"name\":\"Is the diffuser o-ring the same as the chlorinator cell o-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Astral \/ Hurlcon use the same 78104 o-ring for the pump diffuser, the 65mm union tail, and the chlorinator \/ salt cell body. One part covers all three.\"}},{\"@type\":\"Question\",\"name\":\"Does this fit the Viron XT diffuser?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. 78104 is the diffuser o-ring for the Viron XT P320 and P520, and appears in the Viron XT MkII parts diagram. It seals both the small 40071A and large 40071B diffusers.\"}},{\"@type\":\"Question\",\"name\":\"Which pumps use this as the diffuser o-ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"BX, CX, TX, E-Series, P280, P300, P320, P600 and Viron XT P320 \/ P520.\"}},{\"@type\":\"Question\",\"name\":\"My union o-ring is smaller than 95mm - what do I need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"You likely have the 50mm union, which takes o-ring 78303. Measure the old ring flat to confirm before ordering.\"}},{\"@type\":\"Question\",\"name\":\"Is this a genuine Astralpool part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. We are an authorised Astralpool and Fluidra dealer and warranty agent, and this is the genuine 78104 o-ring.\"}}]},{\"@type\":\"HowTo\",\"name\":\"The 95mm Rule (rev. ORING-1.0)\",\"description\":\"How to confirm the Astralpool 78104 o-ring by measurement.\",\"step\":[{\"@type\":\"HowToStep\",\"name\":\"Measure the outside diameter\",\"text\":\"Lay the old o-ring flat and measure across the outside edge to outside edge. The 78104 is approximately 95mm outside diameter.\"},{\"@type\":\"HowToStep\",\"name\":\"Measure the cross section\",\"text\":\"Measure the thickness of the rubber. The 78104 is approximately 5.2mm.\"},{\"@type\":\"HowToStep\",\"name\":\"Match by size, not name\",\"text\":\"If it measures about 95mm outside diameter this is your part, whether it came off a diffuser, a union tail, or a chlorinator cell. If it is a smaller union o-ring you likely need the 50mm union o-ring 78303 instead.\"}]}]}\n\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31611762671673,"sku":"78104","price":7.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-o-ring-78104-pump-diffuser-65mm-union-tail-chlorinator-cell-bx-cx-tx-e-viron-xt-pool-spa-643.webp?v=1784681106"},{"product_id":"hurlcon-astralpool-50mm-o-ring-pumps-filters-heaters-chlorinators","title":"Astralpool \/ Hurlcon 50mm O-ring - for 50mm Barrel Union","description":"\u003ch3\u003eAstralpool \/ Hurlcon 50mm O-ring - for 50mm Barrel Union\u003c\/h3\u003e\u003cp\u003e70003 50mm O-ring for Hurlcon \u0026amp; Astralpool pumps, filters, heaters, chlorinators etc. Suits 50mm Tails. Were originally grey, and with age would squash into a square shape, and possibly turn whitish. New style o-rings are dull black. Note that standard o-rings cannot be used on this equipment. Astral \u0026amp; Hurlcon have used a much less dense (softer) material, as the harder o-rings can damage the plastics and fittings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMeasures approximately 67mm ID, 75mm OD, and 5mm diameter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePumps:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeries E, FX, CX, CTX, TX, P280, P300, etc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong\u003eFilters:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eZX, RX, E, FG, CL, GX, etc\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSalt Chlorinators:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVX, E, Viron, etc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eActual Measurements:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: mm\u003c\/li\u003e\n\u003cli\u003eCross Section: mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan style=\"color: #e6e6e6;\"\u003e water pipe seals gaskets 70003\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":34478113259676,"sku":"70003","price":7.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-hurlcon-50mm-o-ring-for-barrel-union-pool-spa-649.webp?v=1779177973"},{"product_id":"astralpool-viron-cl-filter-lid-o-ring","title":"Astralpool CL Lid O-ring","description":"\u003ch3\u003eAstralpool CL Lid O-ring\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e460mm x 6mm O-ring suits CL 400 \u0026amp; CL 600 cartridge filters by Astral. Part No: \u003cspan\u003e1005501. Numer 4 in the diagram below. Genuine part.\u003c\/span\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":35898003128476,"sku":"1005501","price":74.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-cl-lid-o-ring-pool-spa-828.webp?v=1779180439"},{"product_id":"astralpool-viron-cl-filter-lid-locking-ring","title":"Astralpool CL Lock Ring","description":"\u003ch3\u003eAstralpool CL Lock Ring\u003c\/h3\u003e\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eObsolete - No Longer Available. \u003c\/strong\u003e\u003c\/span\u003eCL 400 \u0026amp; CL 600 Astral Viron Locking Ring. Part Number 76043. Number 1 in the diagram.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement Options:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCL400 replaced by\u003cspan\u003e \u003c\/span\u003e\u003ca class=\"omgrfq-product-link--processed\" href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-viron-ql420-ql540-cartridge-filter\"\u003eQL420\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eCL600 replaced by\u003cspan\u003e \u003c\/span\u003e\u003ca class=\"omgrfq-product-link--processed\" href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-viron-ql540-cartridge-filter\"\u003eQL540\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eNewer versions of the lid require the handles to be removed in order to fit the locking ring. Unlike older models, the locking ring is now designed to detach and remain attached to the lid when it is removed. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":35898021183644,"sku":"76043","price":2.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-cl-lock-ring-pool-spa-338.webp?v=1779180129"},{"product_id":"astralpool-ql-qc-manifold","title":"Astralpool \/ Zodiac M-Fold Uf-De - Com-Grey-Bleed","description":"\u003ch3\u003eAstralpool \/ Zodiac M-Fold Uf-De - Com-Grey-Bleed\u003c\/h3\u003e\u003cp class=\"\"\u003e\u003cstrong\u003eAstralpool QL \u0026amp; QC Manifold – \u003c\/strong\u003eCompatible with Astralpool Viron QL 540, QL 420, and QC cartridge filters.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"\"\u003ePart Number: 76362\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":42621758537917,"sku":"76362","price":122.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-m-fold-uf-de-com-grey-bleed-767.webp?v=1779179536"},{"product_id":"astralpool-hurlcon-40mm-reducing-tail-for-50mm-unions","title":"Astralpool \/ Zodiac Tail Union 50\/40mm PVC","description":"\u003ch3\u003eAstralpool \/ Zodiac Tail Union 50\/40mm PVC\u003c\/h3\u003e\u003cp\u003eAstralpool Hurlcon 40mm Reducing tail for 50mm unions. For use to reduce from 50mm Pressure PVC to 40mm to be used on MX, Viron, HiNRG, Filters, Pumps, etc \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-pump-heater-barrel-unions-50mm-connections-w-o-rings\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eusing these unions\u003c\/a\u003e.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon't confuse with 40mm tail for \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-40mm-hx-jx-heater-barrel-union-nuts-tails-o-rings\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e40mm unions\u003c\/a\u003e. \u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":42650718470333,"sku":"950918","price":7.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-tail-union-50-40mm-pvc-433.webp?v=1779177665"},{"product_id":"hurlcon-gx-cartridge-filter-top-manifold","title":"Astralpool \/ Zodiac Manifold-Top-Gx Filter","description":"\u003ch3\u003eAstralpool \/ Zodiac Manifold-Top-Gx Filter\u003c\/h3\u003e\u003cp\u003eHurlcon GX Cartridge filter top manifold. Part number 8 in diagram.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e75019\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":42959954477245,"sku":"75019","price":329.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-manifold-top-gx-filter-947.webp?v=1779174852"},{"product_id":"astralpool-hurlcon-zx-filter-locating-plug","title":"Astralpool \/ Zodiac Spigot-Zx Filter Element Lid","description":"\u003c!-- HASP-FLP-1.0 | SKU 78203 | product ZX element locating spigot | rule ZXSP-1.0 | canary: zx-spigot-echo-78203 --\u003e\u003ch3\u003eAstralpool ZX \/ Zodiac ZXC Cartridge Element Locating Spigot (Plug) — 78203\u003c\/h3\u003e\u003cp\u003eGenuine Astralpool \u003cstrong\u003eelement locating spigot\u003c\/strong\u003e (locating plug), part number \u003cstrong\u003e78203\u003c\/strong\u003e. It centres and locates the cartridge element under the filter lid on the taller ZX filters, keeping the element seated square so water cannot bypass it. Supplied on its own.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Zodiac ZXC is simply the Zodiac-badged Astralpool ZX, so this spigot suits both.\u003c\/p\u003e\u003ch3\u003eWhich Filters Use It?\u003c\/h3\u003e\u003cp\u003eThe locating spigot is fitted to the taller cartridge filters where the element needs positive location under the lid:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eAstralpool ZX 250 \/ Zodiac ZXC 250\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAstralpool ZX 310 \/ Zodiac ZXC 310\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eOther taller Astral \/ Hurlcon cartridge filters using the same lid and element arrangement\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe shorter single-element ZX filters (50 to 200) generally do not use a separate locating spigot. If you are unsure, send us a photo of your filter with the lid off.\u003c\/p\u003e\u003ch3\u003eGoes With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/joiner-zx-310-element-coupler\"\u003eZX310 element coupler — 78078\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/body-only-zx-310-filter\"\u003eZX310 tank body — 7821702\u003c\/a\u003e · \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/body-only-zx200-250-filter\"\u003eZX200\/250 tank body — 7821302\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters\"\u003eZX \/ ZXC lid assembly — SP7820502\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWill Not Fit\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eAstralpool XC\u003c\/strong\u003e — a separate, unrelated filter series. \u003ca href=\"mailto:info@hasp.com.au\"\u003eContact us\u003c\/a\u003e with your model and a photo.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003ePart Numbers \u0026amp; Search References\u003c\/h3\u003e\u003cp\u003e78203 · SP78203 · Spigot ZX Filter Element Lid · ZX locating plug · ZX element spigot · Zodiac ZXC element locator · Hurlcon ZX250 ZX310 spigot.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhich filters use this spigot?\u003c\/strong\u003e\u003cbr\u003eMainly the taller cartridge filters — the ZX 250 and ZX 310 (Zodiac ZXC 250 \/ 310) and similar Astral \/ Hurlcon models where the element locates under the lid.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy filter is a Zodiac ZXC. Is this the right part?\u003c\/strong\u003e\u003cbr\u003eYes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this spigot fits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy filter is an Astralpool XC. Is this the right part?\u003c\/strong\u003e\u003cbr\u003eNo. The XC is a separate, unrelated filter series. Contact us with your model and a photo and we will match the correct part.\u003c\/p\u003e\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information?\u003c\/strong\u003e See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eAs with all products, these must be diagnosed and fitted by a qualified and experienced person. This is a \u003ca href=\"https:\/\/heaterandspaparts.com.au\/policies\/refund-policy\" rel=\"noopener\" target=\"_blank\"\u003especial-order\u003c\/a\u003e item.\u003c\/p\u003e\u003c!-- \/HASP-FLP-1.0 78203 canary-end zx-spigot-echo --\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-hurlcon-zx-filter-locating-plug#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which filters use this spigot?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Mainly the taller cartridge filters — the ZX 250 and ZX 310 (Zodiac ZXC 250 \/ 310) and similar Astral \/ Hurlcon models where the element locates under the lid.\"}},{\"@type\":\"Question\",\"name\":\"My filter is a Zodiac ZXC. Is this the right part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, so this spigot fits.\"}},{\"@type\":\"Question\",\"name\":\"My filter is an Astralpool XC. Is this the right part?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The XC is a separate, unrelated filter series. Contact us with your model and a photo and we will match the correct part.\"}}]}]}\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":43234526986429,"sku":"78203","price":29.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-spigot-zx-filter-element-lid-172.webp?v=1779177609"},{"product_id":"astralpool-xc-zodiac-zxc-air-bleed-for-cartridge-filters","title":"Astralpool Air Bleed Assembly-XC Filter","description":"\u003ch3\u003eAstralpool Air Bleed Assembly-XC Filter\u003c\/h3\u003e\u003cp\u003eAir Bleed aka Air Release Valve for Astralpool XC filters, Zodiac ZXC, and WWDG CX cartridge filters. Comes with air bleed and o-ring. We recommend lubricating the o-ring and thread with a silicone lube. Do not confuse with the older Astralpool ZX air bleed. Thread has approx ~21 OD and has a barbed tail to prevent it popping out of the filter. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart 12 in diagram.\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":44777072230589,"sku":"SP78490","price":8.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-air-bleed-assembly-xc-filter-997.webp?v=1779173837"},{"product_id":"astralpool-xc-zodiac-zxc-body-o-ring","title":"Astralpool O Ring-Main Body-XC Filter","description":"\u003ch3\u003eAstralpool O Ring-Main Body-XC Filter\u003c\/h3\u003e\u003cp\u003eBody O-ring for Astralpool XC filters, Zodiac ZXC, and WWDG CX cartridge filters. Approx 10mm cross section. We recommend lubricating the o-ring and thread with a silicone lube.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePart 5 in diagram.\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":44777158770877,"sku":"SP78488","price":20.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-o-ring-main-body-xc-filter-914.webp?v=1779173108"},{"product_id":"astralpool-xc-zodiac-zxc-filter-locking-plunger","title":"Astralpool Locking Plunger \u0026 Sp-XC Filter","description":"\u003ch3\u003eAstralpool Locking Plunger \u0026amp; Sp-XC Filter\u003c\/h3\u003e\u003cp\u003eAstralpool SP XC and Zodiac ZXC Filter Locking Plunger with Springs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":44833444200637,"sku":"SP78477","price":19.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-locking-plunger-sp-xc-filter-485.webp?v=1779172569"},{"product_id":"o-ring-seal-for-astralpool-hurlcon-ql-420-ql-540-cartridge-filters","title":"Astralpool \/ Zodiac O Ring - Main Body Ql \u0026 Uf C","description":"\u003ch3\u003eAstralpool \/ Zodiac O Ring - Main Body Ql \u0026amp; Uf C\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e =========================\nO-Ring Seal for Astralpool \/ Hurlcon Viron QL420, QL540 \u0026amp; UF40\nSEO-optimised HTML for Shopify\n========================== \n\u003csection aria-label=\"Product overview: O-Ring Seal for Astralpool \/ Hurlcon Viron QL420, QL540 \u0026amp; UF40\"\u003e\n\u003ch3\u003eO-Ring Seal for Astralpool \/ Hurlcon Viron QL420, QL540 \u0026amp; UF40 Filters — Main Body to Lid Seal (#22)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eReplacement main body\/lid O-ring\u003c\/strong\u003e for Astralpool \/ Hurlcon \u003cstrong\u003eViron QL420\u003c\/strong\u003e and \u003cstrong\u003eQL540\u003c\/strong\u003e cartridge filters. Also suits the \u003cstrong\u003eUF Ultra Fine UF40\u003c\/strong\u003e filter housing. Restores an airtight, watertight seal to prevent leaks, air ingress, and pressure loss.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact fit:\u003c\/strong\u003e Viron QL420, QL540 \u0026amp; UF40 lid-to-body seal (diagram reference \u003cstrong\u003e#22\u003c\/strong\u003e).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable elastomer:\u003c\/strong\u003e resists pool chemicals, UV, and weathering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproves efficiency:\u003c\/strong\u003e maintains system pressure and filtration performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY-friendly:\u003c\/strong\u003e quick install with basic tools and silicone lube.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAstralpool \/ Hurlcon \u003cstrong\u003eViron QL420\u003c\/strong\u003e Cartridge Filter\u003c\/li\u003e\n\u003cli\u003eAstralpool \/ Hurlcon \u003cstrong\u003eViron QL540\u003c\/strong\u003e Cartridge Filter\u003c\/li\u003e\n\u003cli\u003eAstralpool \u003cstrong\u003eUF Ultra Fine UF40\u003c\/strong\u003e Filter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAlso known as:\u003c\/em\u003e lid O-ring, tank O-ring, body seal ring.\u003c\/p\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWater weeping or drips around the lid clamp\u003c\/li\u003e\n\u003cli\u003eExcess bubbles in pump basket or pool returns (air leaks)\u003c\/li\u003e\n\u003cli\u003ePressure drop or priming issues after cartridge cleaning\u003c\/li\u003e\n\u003cli\u003eO-ring is flattened, cracked, swollen, or sticky\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cp\u003e1 × Main body\/lid O-ring seal for the models listed above.\u003c\/p\u003e\n\u003ch3\u003eInstallation (Quick Guide)\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eTurn off power and release pressure via the filter air bleed.\u003c\/li\u003e\n\u003cli\u003eRemove the clamp\/band and lift the lid straight up.\u003c\/li\u003e\n\u003cli\u003eClean the O-ring groove and seating surfaces (remove grit\/old grease).\u003c\/li\u003e\n\u003cli\u003eLightly coat the new O-ring with \u003cstrong\u003e100% silicone-based lubricant\u003c\/strong\u003e (avoid petroleum jelly).\u003c\/li\u003e\n\u003cli\u003eSeat O-ring evenly, refit lid, reinstall clamp per manufacturer specs.\u003c\/li\u003e\n\u003cli\u003eRe-pressurise and check for leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance tip:\u003c\/strong\u003e re-lubricate the O-ring at each cartridge clean.\u003c\/p\u003e\n\u003ch3\u003eRecommended Add-Ons\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans\/collections\/tools-and-lubricants\" rel=\"nofollow\"\u003eSilicone O-Ring Lubricant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans\/collections\/filter-parts\" rel=\"nofollow\"\u003eReplacement Clamp\/Band\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/zh-hans\/collections\/cleaning\" rel=\"nofollow\"\u003eFilter Cartridge Cleaner\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Keyword helpers for search \u0026 AI (kept human-readable) --\u003e\n\u003cp class=\"sr-only\"\u003eKeywords: Astralpool Viron QL420 O-ring, QL540 lid seal, UF40 O-ring replacement, Astral\/Hurlcon cartridge filter body seal, pool filter spare parts Australia.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c!-- =========================\nStructured Data (JSON-LD)\n- Pulls product fields from Shopify where possible\n========================== --\u003e\n\n\u003c!-- Optional FAQ rich results --\u003e\n\n\u003c!-- Optional HowTo rich results for installation --\u003e\n\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":45305801736381,"sku":"76316","price":120.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-o-ring-main-body-ql-uf-c-910.webp?v=1779157686"},{"product_id":"genuine-astralpool-zx-310-cartridge-filter-elements-pair-78088-replacement-hurlcon","title":"Astralpool Genuine Astralpool® Filter Cartridge Element - ZX 310 - 2 Elements","description":"\u003ch3\u003eAstralpool Genuine Astralpool® Filter Cartridge Element - ZX 310 - 2 Elements\u003c\/h3\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eGenuine \u003c\/strong\u003e\u003c\/em\u003eAstralpool-branded Replacement filter elements for all Hurlcon Astralpool \u003cspan\u003eZX310 cartridge filters for pools and spas. \u003c\/span\u003eCartridges should be replaced every 1-3 years. Comes as a pair. 435mm x 230mm x 75mm. Comes as a pair. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications \/ Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Part No: 78088 (2x filters)\u003c\/li\u003e\n\u003cli\u003eSuits ZX 310 Cartridge Filters\u003c\/li\u003e\n\u003cli\u003eLength: ~435-449mm\u003c\/li\u003e\n\u003cli\u003eDiameter: 230mm\u003c\/li\u003e\n\u003cli\u003eHole: 75mm\u003c\/li\u003e\n\u003cli\u003eComes as a Pair that are stacked in the filter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMore Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003eShipped Fast\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFilters should be replaced 1-2 years.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":46416897278141,"sku":"SP78088","price":434.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-genuine-r-filter-cartridge-element-zx-310-2-elements-filters-552.webp?v=1780306286"},{"product_id":"genuine-astralpool-zx-250-xc-250-cartridge-filter-element","title":"Astralpool Genuine Astralpool® \/ Zodiac® Filter Cartridge Element ZX\/XC 250 Filter","description":"\u003ch3\u003eAstralpool Genuine Astralpool® \/ Zodiac® Filter Cartridge Element ZX\/XC 250 Filter\u003c\/h3\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eGenuine \u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003eAstralpool® ZX 250 \/ XC 250, Filtrite CF250 Cartridge Filter Element - 78094\u003c\/strong\u003e - Not Aftermarket. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-250-cartridge-filter-element\"\u003e\u003cem\u003eClick here for aftermarket filter\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e (made by a Fluidra OEM).\u003c\/em\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications \/ Dimensions:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOEM Part No: 78094, SP78094\u003c\/li\u003e\n\u003cli\u003eLength: 688mm\u003c\/li\u003e\n\u003cli\u003eDiameter: 230mm\u003c\/li\u003e\n\u003cli\u003eHole: 75-77mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMore Information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShipped Fast\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFilters should be replaced 1-2 years.\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues:\n \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\n\u003c\/strong\u003e\u003c\/p\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":46428666659005,"sku":"SP78094","price":290.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-genuine-r-zodiac-filter-cartridge-element-zx-xc-250-872.webp?v=1780304946"},{"product_id":"pressure-gauge","title":"Universal Pressure Gauge for Pool \u0026 Spa Filters - 1\/4\" BSP (13mm thread)","description":"\u003ch3\u003eUniversal Pressure Gauge for Pool \u0026amp; Spa Filters - 1\/4\" BSP (13mm thread)\u003c\/h3\u003e\n\u003cp style=\"margin-top: 14px;\"\u003e\u003cem\u003e\u003cspan style=\"color: #9a9a9a;\"\u003eSuits almost all \u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 4px;\"\u003e\u003cspan style=\"color: #9a9a9a; font-size: 0.9em;\"\u003eSKU: 4404010103\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information? See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e \u003c\/strong\u003e\u003c\/p\u003e","brand":"FLUIDRA","offers":[{"title":"Default Title","offer_id":46544465133757,"sku":"75032","price":21.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/universal-pressure-gauge-for-pool-spa-filters-1-4-bsp-13mm-thread-447.webp?v=1781671388"},{"product_id":"astralpool-zx-filter-parts-list-aka-filtrite-cf-oasis-and-others","title":"Astralpool ZX Filter Parts List - aka Filtrite CF, Oasis, and Others","description":"","brand":"Heater and Spa Parts","offers":[{"title":"Default Title","offer_id":46946381955261,"sku":null,"price":2.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zx-filter-parts-list-aka-filtrite-cf-oasis-and-others-318.webp?v=1781654410"}],"url":"https:\/\/heaterandspaparts.com.au\/zh-hans\/collections\/astralpool-zodiac-filter-spare-parts.oembed","provider":"Heater and Spa Parts","version":"1.0","type":"link"}