{"product_id":"hayward-star-clear-plus-cartridge-filter-head-oring-cx900f-2-pack","title":"Hayward Star-Clear Plus Cartridge Filter Head O-Ring (CX900F) – 2 Pack","description":"\u003cp\u003e\u003cstrong\u003eHayward Star-Clear Plus Cartridge Filter Head O-Ring\u003c\/strong\u003e — part no. \u003cstrong\u003eCX900F\u003c\/strong\u003e. This large rubber O-ring seals the filter head to the filter tank on Hayward Star-Clear Plus cartridge filters. A worn or cracked filter head O-ring causes water to leak from the joint between the filter head and the tank. Replacing this O-ring restores a watertight seal. Supplied as a \u003cstrong\u003e2-pack\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHayward Star-Clear Plus C751\u003c\/li\u003e\n\u003cli\u003eHayward Star-Clear Plus C900\u003c\/li\u003e\n\u003cli\u003eHayward Star-Clear Plus C1200\u003c\/li\u003e\n\u003cli\u003eHayward Star-Clear Plus C1750\u003c\/li\u003e\n\u003cli\u003eCross-reference: Sta-Rite U9-228A \/ O-240\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Hayward\u003c\/li\u003e\n\u003cli\u003ePart number \/ SKU: CX900F\u003c\/li\u003e\n\u003cli\u003eQuantity: 2-pack\u003c\/li\u003e\n\u003cli\u003eMaterial: rubber\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow do I know if this O-ring needs replacing?\u003c\/h3\u003e\n\u003cp\u003eIf water is leaking from the joint between the filter head and the filter tank, the filter head O-ring is the most likely cause. Turn off the pump and relieve system pressure, then remove the filter head and inspect the O-ring for cracks, flattening, or deformation. Even if the O-ring looks intact, if it has been in service for several years it may have lost its elasticity and should be replaced during routine filter servicing.\u003c\/p\u003e\n\n\u003ch3\u003eWhy does this listing include 2 O-rings?\u003c\/h3\u003e\n\u003cp\u003eThis listing supplies a \u003cstrong\u003e2-pack\u003c\/strong\u003e, giving you a spare for future maintenance or for use across two filters. Having a spare O-ring on hand means you can replace it immediately if the first one fails, without waiting for a new order.\u003c\/p\u003e\n\n\u003ch3\u003eShould I lubricate the O-ring when fitting it?\u003c\/h3\u003e\n\u003cp\u003eYes — apply a small amount of silicone-based O-ring lubricant (not petroleum-based grease) to the O-ring before fitting. This helps the O-ring seat correctly, prevents pinching, and extends its service life.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":54421563015443,"sku":"CX900F","price":32.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/0591\/1827\/files\/9c78bd1fd2389db3e366115856ccda0048421b47_original.jpg?v=1783897984","url":"https:\/\/poolshop.com.au\/products\/hayward-star-clear-plus-cartridge-filter-head-oring-cx900f-2-pack","provider":"Pool Shop Australia","version":"1.0","type":"link"}