{"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\n\n\u003cp style=\"color:#0047B3;\"\u003e\u003cstrong\u003eWe keep these physically in stock for fast shipping or local pick-up, unlike most drop-shipping websites.\u003c\/strong\u003e\u003c\/p\u003e\n\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\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\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\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\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\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\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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAir Bleed, Air Release Valve, Drain Plug for all Astralpool \u0026amp; Hurlcon ZX, QX, CL, CF, UF, QL, WWDG, Zodiac ZCF cartridge filters as well as IX Leaf Canisters. Comes with dual threaded D air bleed (to avoid it popping out) and o-ring. \u003cstrong\u003eGenuine Astral pool Hurlcon Replacement Part. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuits many other brands of cartridge filters that use the same common 1\/4” BSP (~13mm) thread. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Use small amount of silicone libricant to prevent plastic binding on thread.\u003c\/p\u003e\n\u003cp\u003eOld Manufacturer's Part Number: 78205 \u0026amp; 78207\u003cbr\u003eNew Manufacturer's Part Number: 78103 \u0026amp; 78705 \/ 7870510\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":31491945594937,"sku":"7870510","price":7.49,"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 Filter Lid with Handles \u0026 Locking Ring","description":"\u003ch3\u003eGenuine AstralPool \/ Hurlcon ZX \/ Zodiac ZCF Cartridge Filter Lid Assembly with Locking Ring\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eGenuine AstralPool \/ Hurlcon ZX cartridge filter lid assembly\u003c\/strong\u003e, supplied complete with locking ring and air bleed assembly. This replacement lid is used on AstralPool ZX, Hurlcon ZX, Zodiac ZCF \/ Titan ZCF, Astral SMART and selected re-branded cartridge filters that use the ZX-style lid and tank design.\u003c\/p\u003e\n\n\u003cp\u003eUse this lid assembly to replace a cracked, damaged, leaking or hard-to-tighten filter lid. These filters have been sold under several brand names over the years, and the lid colour has changed across different production runs, so always check the model and style before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eFast Australia-wide shipping or in-store pickup available.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete cartridge filter lid top\u003c\/li\u003e\n  \u003cli\u003eNew locking ring\u003c\/li\u003e\n  \u003cli\u003eAir bleed assembly\u003c\/li\u003e\n  \u003cli\u003eAir bleed O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eColour note:\u003c\/strong\u003e These lids have previously been supplied in grey, beige and black depending on age and brand. Current production is usually black. Colour may differ from the original lid fitted to your filter.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This listing is for the \u003cstrong\u003elid assembly only\u003c\/strong\u003e. It does \u003cstrong\u003enot\u003c\/strong\u003e include the large tank body O-ring \/ lid O-ring unless specifically shown or stated. If you need the large tank O-ring, see the linked O-ring listing below.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Models\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eAstralPool \/ Hurlcon ZX Series cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZX50 \/ ZX 50\u003c\/li\u003e\n  \u003cli\u003eZX75 \/ ZX 75\u003c\/li\u003e\n  \u003cli\u003eZX100 \/ ZX 100\u003c\/li\u003e\n  \u003cli\u003eZX150 \/ ZX 150\u003c\/li\u003e\n  \u003cli\u003eZX200 \/ ZX 200\u003c\/li\u003e\n  \u003cli\u003eZX250 \/ ZX 250\u003c\/li\u003e\n  \u003cli\u003eZX310 \/ ZX 310\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eZodiac ZCF \/ Titan ZCF cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZCF75 \/ ZCF 75\u003c\/li\u003e\n  \u003cli\u003eZCF100 \/ ZCF 100\u003c\/li\u003e\n  \u003cli\u003eZCF150 \/ ZCF 150\u003c\/li\u003e\n  \u003cli\u003eZCF200 \/ ZCF 200\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAstral Leisure Pools SMART cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSMART 350 \/ Smart 350\u003c\/li\u003e\n  \u003cli\u003eSMART 450 \/ Smart 450\u003c\/li\u003e\n  \u003cli\u003eSMART 550 \/ Smart 550\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlso commonly cross-referenced with selected re-branded ZX-style filters, including:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFiltrite CF50 \/ CF 50\u003c\/li\u003e\n  \u003cli\u003eFiltrite CF75 \/ CF 75\u003c\/li\u003e\n  \u003cli\u003eFiltrite CF100 \/ CF 100\u003c\/li\u003e\n  \u003cli\u003eFiltrite CF150 \/ CF 150\u003c\/li\u003e\n  \u003cli\u003eFiltrite CF200 \/ CF 200\u003c\/li\u003e\n  \u003cli\u003eFiltrite CF250 \/ CF 250\u003c\/li\u003e\n  \u003cli\u003eSpaPro X50 \/ X 50\u003c\/li\u003e\n  \u003cli\u003eSpaPro X100 \/ X 100\u003c\/li\u003e\n  \u003cli\u003eSpaPro X150 \/ X 150\u003c\/li\u003e\n  \u003cli\u003eSpaPro X200 \/ X 200\u003c\/li\u003e\n  \u003cli\u003eWWDG CF100 \/ CF 100\u003c\/li\u003e\n  \u003cli\u003eWWDG CF150 \/ CF 150\u003c\/li\u003e\n  \u003cli\u003eWWDG CF200 \/ CF 200\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\n\n\u003ch3\u003ePart Numbers \u0026amp; Search References\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSP7820502\u003c\/li\u003e\n  \u003cli\u003eSP 7820502\u003c\/li\u003e\n  \u003cli\u003e7820502\u003c\/li\u003e\n  \u003cli\u003eAPA302685\u003c\/li\u003e\n  \u003cli\u003eAPA_302-685\u003c\/li\u003e\n  \u003cli\u003eAstralPool ZX filter lid\u003c\/li\u003e\n  \u003cli\u003eHurlcon ZX filter lid\u003c\/li\u003e\n  \u003cli\u003eZodiac ZCF filter lid\u003c\/li\u003e\n  \u003cli\u003eTitan ZCF filter lid\u003c\/li\u003e\n  \u003cli\u003eZX cartridge filter lid and locking ring\u003c\/li\u003e\n  \u003cli\u003eZCF cartridge filter lid and locking ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Replace The Filter Lid?\u003c\/h3\u003e\n\n\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 or hard-to-tighten locking ring\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\n\n\u003ch3\u003eNeed The Large Tank O-Ring?\u003c\/h3\u003e\n\n\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.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters\" title=\"AstralPool \/ Hurlcon ZX Cartridge Filter Tank O-Ring\" target=\"_blank\"\u003eClick here for the AstralPool \/ Hurlcon ZX cartridge filter tank O-ring\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eCheck Before Ordering\u003c\/h3\u003e\n\n\u003cp\u003eBecause these filters were sold under different brands and colours, compare the shape of your existing lid, locking ring and filter body before ordering. If you are unsure, send us a photo of the filter label, lid and tank and we can help confirm the correct part.\u003c\/p\u003e\n\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\n\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","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31552026279993,"sku":"SP7820502","price":235.2,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zx-zodiac-zcf-titan-filtrite-cf-filter-lid-with-handles-locking-ring-pool-spa-551.webp?v=1781011269"},{"product_id":"o-ring-for-astralpool-hurlcon-zx-cartridge-filters","title":"Astralpool ZX \/ Zodiac ZCF Cartrildge Filter O-Ring Seal - MKII","description":"\u003cp\u003e\u003cstrong\u003eGenuine AstralPool \/ Hurlcon ZX \/ Zodiac ZCF Cartridge Filter Lid O-Ring\u003c\/strong\u003e for AstralPool ZX, Hurlcon ZX, Zodiac ZCF, Astral SMART and compatible cartridge filter tanks.\u003c\/p\u003e\n\n\u003cp\u003eThis is the main \u003cstrong\u003efilter lid O-ring\u003c\/strong\u003e, also called the \u003cstrong\u003etank O-ring\u003c\/strong\u003e or \u003cstrong\u003elid seal\u003c\/strong\u003e. It seals the filter lid to the tank body. Replace this O-ring if the filter lid is leaking, weeping water, drawing air, difficult to tighten, or if the existing seal is flattened, cracked, stretched or perished.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003eGenuine AstralPool \/ Fluidra 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 part 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\u003eCommon diagram reference:\u003c\/strong\u003e Item 4 on many ZX diagrams, Item 7 on some ZCF diagrams\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Models\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eAstralPool \/ Hurlcon ZX cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZX50 \/ ZX 50\u003c\/li\u003e\n  \u003cli\u003eZX75 \/ ZX 75\u003c\/li\u003e\n  \u003cli\u003eZX100 \/ ZX 100\u003c\/li\u003e\n  \u003cli\u003eZX150 \/ ZX 150\u003c\/li\u003e\n  \u003cli\u003eZX200 \/ ZX 200\u003c\/li\u003e\n  \u003cli\u003eZX250 \/ ZX 250\u003c\/li\u003e\n  \u003cli\u003eZX310 \/ ZX 310\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eZodiac ZCF \/ Titan ZCF cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZCF75 \/ ZCF 75\u003c\/li\u003e\n  \u003cli\u003eZCF100 \/ ZCF 100\u003c\/li\u003e\n  \u003cli\u003eZCF150 \/ ZCF 150\u003c\/li\u003e\n  \u003cli\u003eZCF200 \/ ZCF 200\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAstral Leisure Pools SMART cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSMART 350 \/ Smart 350\u003c\/li\u003e\n  \u003cli\u003eSMART 450 \/ Smart 450\u003c\/li\u003e\n  \u003cli\u003eSMART 550 \/ Smart 550\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eAlso commonly cross-referenced with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAstral IX \/ IX50 in-line leaf canister tank O-ring\u003c\/li\u003e\n  \u003cli\u003eSome Filtrite CF cartridge filter applications where the filter uses the Astral \/ Hurlcon ZX-style lid and tank assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePart Numbers \u0026amp; Search References\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e78110\u003c\/li\u003e\n  \u003cli\u003e78105\u003c\/li\u003e\n  \u003cli\u003eO Ring Lid ZX Filter MK2\u003c\/li\u003e\n  \u003cli\u003eZX Cartridge Filter Lid O-Ring\u003c\/li\u003e\n  \u003cli\u003eZX Cartridge Filter Tank O-Ring\u003c\/li\u003e\n  \u003cli\u003eZCF Cartridge Filter Lid O-Ring\u003c\/li\u003e\n  \u003cli\u003eZCF Cartridge Filter Tank O-Ring\u003c\/li\u003e\n  \u003cli\u003eAstralPool ZX lid seal\u003c\/li\u003e\n  \u003cli\u003eHurlcon ZX lid seal\u003c\/li\u003e\n  \u003cli\u003eZodiac ZCF lid seal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen To Replace This O-Ring\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWater leaks 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 removed for cartridge cleaning and the seal no longer sits properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\n\u003cp\u003eClean the lid and tank sealing groove before fitting the new O-ring. Dirt, grit, old lubricant and calcium build-up can stop the lid from 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 can damage rubber seals.\u003c\/p\u003e\n\n\u003ch3\u003eNeed The Complete Lid Assembly?\u003c\/h3\u003e\n\n\u003cp\u003eIf your lid, lock ring or handles are damaged, you may need the complete lid assembly instead of just the O-ring. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters\" title=\"AstralPool ZX \/ SMART Cartridge Filter Lid Assembly\"\u003eClick here for the AstralPool ZX \/ SMART cartridge filter lid assembly\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNot sure if this is the right seal? Check your filter model label or measure your existing O-ring. You can also send us a photo of the filter label, lid and old O-ring and we can help confirm the correct part.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\n\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","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31552038797369,"sku":"78110","price":27.49,"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 \/ Zodiac O-Ring Tail Union 65mm - Bx\/Fx","description":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWhile called a \"65mm O-ring\" this is the large ~95mm o-ring for Astralpool Chlorinators, Rolachem Mixing cells, and older Probe bodies. Also used for 65mm tails on BX, XP, P300 Pumps and the Volute o-ring in many CX, TX, CTX, and E-series pumps. Measures approx 95mm outside diameter x 5.2mm cross section.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e78104\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":31611762671673,"sku":"78104","price":6.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zodiac-o-ring-tail-union-65mm-bx-fx-pool-spa-762.webp?v=1779173646"},{"product_id":"hurlcon-astralpool-50mm-o-ring-pumps-filters-heaters-chlorinators","title":"Astralpool \/ Hurlcon 50mm O-ring - for 50mm Barrel Union","description":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\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":6.0,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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":69.0,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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 href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-viron-ql420-ql540-cartridge-filter\" class=\"omgrfq-product-link--processed\"\u003eQL420\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eCL600 replaced by\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-viron-ql540-cartridge-filter\" class=\"omgrfq-product-link--processed\"\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":229.0,"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":"\u003cp data-start=\"73\" data-end=\"215\" class=\"\"\u003e\u003cstrong data-start=\"73\" data-end=\"138\"\u003eAstralpool QL \u0026amp; QC Manifold – \u003c\/strong\u003eCompatible with Astralpool Viron QL 540, QL 420, and QC cartridge filters.\u003c\/p\u003e\n\u003cp data-start=\"349\" data-end=\"367\" 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":114.0,"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":"\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\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eusing these unions\u003c\/a\u003e.\u003c\/p\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\" target=\"_blank\" rel=\"noopener noreferrer\"\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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eHurlcon GX Cartridge filter top manifold. Part number 8 in diagram.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\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":309.0,"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":"\u003cp\u003eAstralpool Hurlcon ZX Filter Locating Plug used between cartridge filters in the ZX 250, ZX 310 and other Astral \/ Hurlcon cartridge filters.\u003c\/p\u003e\n\u003cp\u003eGenuine\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e78203\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":43234526986429,"sku":"78203","price":25.49,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\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":7.0,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\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":18.0,"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":"\u003cp\u003eAstralpool SP XC and Zodiac ZXC Filter Locking Plunger with Springs.\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":44833444200637,"sku":"SP78477","price":18.0,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\u003e\u003c!-- =========================\nO-Ring Seal for AstralPool \/ Hurlcon Viron QL420, QL540 \u0026 UF40\nSEO-optimised HTML for Shopify\n========================== --\u003e\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 rel=\"nofollow\" href=\"\/collections\/tools-and-lubricants\"\u003eSilicone O-Ring Lubricant\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"nofollow\" href=\"\/collections\/filter-parts\"\u003eReplacement Clamp\/Band\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"nofollow\" href=\"\/collections\/cleaning\"\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\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Optional FAQ rich results --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Optional HowTo rich results for installation --\u003e\n\u003cp\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":45305801736381,"sku":"76316","price":113.6,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\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\u003ePhysically kept in stock, unlike many \"Drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003eShipped Fast\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003ePick-Up Available\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":389.0,"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":"\u003cp\u003e\u003cstrong\u003eAstralpool\u003c\/strong\u003e\u003c\/p\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\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\u003ePhysically kept in stock, unlike many \"Drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eShipped Fast\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003ePick-Up Available\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":289.0,"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 Liquid-Filled Pressure Gauge - 1\/4\" BSP\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\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":22.0,"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"}],"url":"https:\/\/heaterandspaparts.com.au\/collections\/astralpool-zodiac-filter-spare-parts.oembed","provider":"Heater and Spa Parts","version":"1.0","type":"link"}