{"product_id":"haywardoringkit2packdex2420z8ahppdex2420z8a","title":"Hayward O-Ring Kit 2-Pack | DEX2420Z8A","description":"\u003cdiv class=\"product-description\"\u003e\n\n  \u003ch2\u003eHayward DEX2420Z8A O-Ring Kit (Set of 2) for Manual Air Relief Assembly – Pro-Grid® \/ SwimClear® \/ HCF\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Hayward \u003cstrong\u003eDEX2420Z8A\u003c\/strong\u003e is an OEM \u003cstrong\u003eO-ring kit (set of 2)\u003c\/strong\u003e used to reseal the\n    \u003cstrong\u003emanual air relief assembly\u003c\/strong\u003e on select Hayward filters. If you have seepage around the air relief, difficulty holding a seal\n    after opening\/closing the air bleed, or worn\/dry O-rings during service, replacing these O-rings helps restore a tight, leak-resistant seal.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eFits \/ Compatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eHayward \u003cstrong\u003ePro-Grid\u003c\/strong\u003e vertical grid D.E. filters (air relief assembly sealing)\u003c\/li\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eSwimClear\u003c\/strong\u003e cartridge filters (air relief assembly sealing)\u003c\/li\u003e\n    \u003cli\u003eHayward \u003cstrong\u003eHCF\u003c\/strong\u003e series cartridge filters (air relief assembly sealing)\u003c\/li\u003e\n    \u003cli\u003eCommonly used with Hayward \u003cstrong\u003eManual Air Relief Assembly DEX2420MAR2\u003c\/strong\u003e (verify your filter’s parts diagram)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e(2) Replacement O-rings (air relief assembly seal kit)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCommon Reasons to Replace\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDrips or seepage around the manual air relief assembly\u003c\/li\u003e\n    \u003cli\u003eAir relief won’t seal reliably after operation\u003c\/li\u003e\n    \u003cli\u003eFlattened, cracked, swollen, or brittle O-rings discovered during filter service\u003c\/li\u003e\n    \u003cli\u003ePreventive replacement when servicing or rebuilding the air relief\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eShut off the pump and \u003cstrong\u003erelieve filter pressure\u003c\/strong\u003e before servicing the air relief.\u003c\/li\u003e\n    \u003cli\u003eRemove the old O-rings, clean the grooves and mating surfaces, then install the new O-rings evenly.\u003c\/li\u003e\n    \u003cli\u003eLightly lubricate with a \u003cstrong\u003esilicone-based\u003c\/strong\u003e pool O-ring lubricant (never petroleum-based).\u003c\/li\u003e\n    \u003cli\u003eAfter reassembly, restart the system and verify the air relief seals with no drips.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecs (Quick Reference)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePart Number: \u003cstrong\u003eDEX2420Z8A\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003ePart Type: \u003cstrong\u003eFilter Parts\u003c\/strong\u003e (O-Ring Kit, Set of 2)\u003c\/li\u003e\n    \u003cli\u003ePool Type: \u003cstrong\u003eIn-Ground\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eWarranty: \u003cstrong\u003e6 months (parts only)\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=DEX2420Z8A\"\u003eHayward DEX2420Z8A O-Ring Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=DEX2420MAR2\"\u003eHayward DEX2420MAR2 Manual Air Relief Assembly (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=DEX2421JKIT\"\u003eHayward DEX2421JKIT Clamp System Kit (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=DEX2421J2\"\u003eHayward DEX2421J2 Clamp Nut \u0026amp; Bolt (search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=silicone%20pool%20lube\"\u003eSilicone O-Ring \u0026amp; Gasket Lubricant (search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOpen the air relief at startup until a steady stream of water flows, then close—this helps purge trapped air safely.\u003c\/li\u003e\n    \u003cli\u003eReplace O-rings whenever they look flattened or dry; reusing worn O-rings is a common cause of repeat leaks.\u003c\/li\u003e\n    \u003cli\u003eKeep the air relief area clean—grit can nick O-rings and prevent a proper seal.\u003c\/li\u003e\n    \u003cli\u003eNever service the air relief or clamp while the filter is under pressure.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":46797878558895,"sku":"DEX2420Z8A","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/hayward-o-ring-kit-2-pack-dex2420z8a-pool-filter-parts-2893924.jpg?v=1777068627","url":"https:\/\/freshized.com\/products\/haywardoringkit2packdex2420z8ahppdex2420z8a","provider":"Freshized","version":"1.0","type":"link"}