{"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":7.0,"currency_code":"NZD","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","url":"https:\/\/heaterandspaparts.com.au\/en-nz\/products\/air-bleed-release","provider":"Heater and Spa Parts","version":"1.0","type":"link"}