{"product_id":"cryspool-2402-spa-filter-replacement-cartridge-fits-watkins-303279-fc-2402-trilobal-fiber-9-5-x-5-375","title":"Cryspool 2402 Spa Filter Replacement Cartridge — Fits Watkins 303279 \/ FC-2402, Trilobal Fiber, 9.5\" x 5.375\"","description":"\u003cp\u003e\u003cstrong\u003eCryspool 2402 spa filter is a direct-fit replacement cartridge engineered to match Watkins 303279 and FC-2402 specifications, delivering deeper filtration and easy cleaning for hot tubs and spas.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your spa relies on cartridges to keep water clear, the Cryspool 2402 offers a robust, high-capacity alternative built from trilobal fiber media and reinforced end caps. Sized at 9 1\/2\" length and 5 3\/8\" outside diameter with a 1 1\/2\" MPT bottom thread and a closed top with string handle, this filter drops into many common hot tub systems and aims to extend service intervals while maximizing particulate capture.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter fit my hot tub model?\u003c\/h3\u003e\n\u003cp\u003eThe Cryspool 2402 is designed to replace Watkins 303279 and FC-2402 filter cartridges and is compatible with several systems that use the same dimensions and thread type. Check your existing cartridge’s length, outside diameter and bottom thread size to confirm fit before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 9 1\/2\" (not 6\")\u003c\/li\u003e\n  \u003cli\u003eOutside diameter: 5 3\/8\"\u003c\/li\u003e\n  \u003cli\u003eTop: closed with string handle for easy removal\u003c\/li\u003e\n  \u003cli\u003eBottom: 1 1\/2\" MPT threaded connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Cryspool media different from standard filters?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge uses an advanced trilobal fiber fabric rather than conventional point-bond media. The trilobal structure increases surface area and depth-loading capacity, so the filter traps more debris throughout the pleats instead of clogging at the surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrilobal fibers capture finer particles and hold more debris\u003c\/li\u003e\n  \u003cli\u003eDepth-loading reduces pressure rise between cleans\u003c\/li\u003e\n  \u003cli\u003eDurable end caps and pleat construction resist deformation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I clean and maintain this replacement cartridge?\u003c\/h3\u003e\n\u003cp\u003eCleaning is straightforward: rinse with a hose to remove loose debris, and soak with a filter cleaner periodically for deep cleaning. Because the trilobal fabric releases trapped solids more effectively, the cartridge often performs like new after a proper wash and soak cycle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse with a high-pressure hose until water runs clear\u003c\/li\u003e\n  \u003cli\u003eSoak in filter cleaner every few months or per usage\u003c\/li\u003e\n  \u003cli\u003eReplace when material or end caps show wear or irreparable damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat practical benefits will I notice after installing it?\u003c\/h3\u003e\n\u003cp\u003eOwners typically see clearer water and steadier system pressure thanks to the filter’s increased capacity and durable construction. The reinforced pleats and reliable threading keep the cartridge seated properly, reducing bypass and ensuring consistent filtration performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImproved particulate removal for clearer spa water\u003c\/li\u003e\n  \u003cli\u003eLonger intervals between deep cleanings when maintained\u003c\/li\u003e\n  \u003cli\u003eSturdy fit with common Watkins-style housings and threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Cryspool 2402 is aimed at hot tub and spa owners who need a dependable replacement for Watkins 303279 or FC-2402 cartridges, service technicians stocking common replacement parts, and anyone who wants a higher-capacity, easy-to-clean filter medium. If your system requires a 9 1\/2\" cartridge with a 1 1\/2\" MPT bottom thread and you value durable pleats and improved filtration efficiency, this cartridge is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this filter compatible with Watkins 303279?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Cryspool 2402 is sized and threaded to replace Watkins 303279 and FC-2402 cartridges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean the Cryspool 2402?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse regularly and deep-soak with a filter cleaner every few months or when pressure rises.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Cryspool","offers":[{"title":"Default Title","offer_id":56824691851604,"sku":"B09Q33BC64","price":80.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/cryspool-2402-front-view.jpg?v=1786986411","url":"https:\/\/gardenluxe.co.uk\/products\/cryspool-2402-spa-filter-replacement-cartridge-fits-watkins-303279-fc-2402-trilobal-fiber-9-5-x-5-375","provider":"Gardenluxe Uk","version":"1.0","type":"link"}