{"product_id":"dayear-fc-2402-spa-filter-cartridge-42-sq-ft-replacement-for-watkins-303279-1-pack-trilobal-media-for-clearer-water","title":"DAYEAR FC-2402 Spa Filter Cartridge 42 sq.ft. Replacement for Watkins 303279 — 1-Pack, Trilobal Media for Clearer Water","description":"\u003cb\u003eDAYEAR FC-2402 is a 42 sq.ft. replacement spa filter cartridge designed to fit Watkins 303279 and a wide range of compatible hot tub models, delivering reliable particle capture and durable construction for clearer spa water.\u003c\/b\u003e\n\n\u003cp\u003eEngineered as a direct-fit compatible for popular part numbers like Watkins 303279, PFF42TC-P4 and Unicel 5CH-37, the DAYEAR FC-2402 combines NSF-ANSI 42-compliant materials, a reinforced ABS core, and trilobal filtration fabric to trap dirt, hair, lotions and fine debris. The cartridge's 42 square feet of media and thicker filter fabric increase holding capacity, while heavy-duty bonded straps and chlorine-resistant end caps improve longevity under regular spa use. This one-pack is sized for many Lifesmart, Freeflow, AquaTerra and similar tubs — verify measurements before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve spa water clarity?\u003c\/h3\u003e\n\u003cp\u003eThe FC-2402 uses dense trilobal filtration fabric that captures fine particles more effectively than standard pleated media. With 42 sq.ft. of filtration area and a robust ABS core, it sustains higher flow rates while maintaining trapping efficiency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e42 sq.ft. of media provides larger dirt-holding capacity\u003c\/li\u003e\n  \u003cli\u003eTrilobal fibres increase particle retention compared with ordinary filters\u003c\/li\u003e\n  \u003cli\u003eThicker fabric resists clogging and keeps water clearer between cleanings\u003c\/li\u003e\n  \u003cli\u003eDesigned for up to 3000 GPH flow pressure without deformation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge fit my hot tub model and plumbing?\u003c\/h3\u003e\n\u003cp\u003eDAYEAR FC-2402 matches common replacement part dimensions used across many brands, but compatibility depends on your tub’s length, diameter and thread type. Check the cartridge length (9 3\/8\"), outside diameter (5 1\/4\") and bottom thread (1 1\/2\" MPT) against your current filter before purchasing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 9 3\/8\" (238 mm) — top closed with string handle\u003c\/li\u003e\n  \u003cli\u003eOutside diameter: 5 1\/4\" (133 mm)\u003c\/li\u003e\n  \u003cli\u003eBottom: 1 1\/2\" MPT threaded connection\u003c\/li\u003e\n  \u003cli\u003eCompatible references: Watkins 303279, PFF42TC-P4, Filbur FC-2402, Unicel 5CH-37\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I clean and maintain this spa filter for best results?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge is made from easy-clean materials and benefits from routine maintenance to retain flow and filtration performance. DAYEAR recommends cleaning every two weeks in typical use and removing the filter before soaking or using strong cleaners to avoid corrosion on metal fittings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse with a hose to remove surface debris between deep cleans\u003c\/li\u003e\n  \u003cli\u003eUse a filter cleaner soak monthly for thorough degreasing and sanitiser removal\u003c\/li\u003e\n  \u003cli\u003eAlways remove the cartridge before using corrosive cleaners in the tub\u003c\/li\u003e\n  \u003cli\u003eInspect end caps and straps for wear; replace if cracked or weakened\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and safety features of the FC-2402?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge blends safety-certified materials with reinforced components to withstand spa conditions. The ABS core offers superior strength versus polypropylene, and chlorine-resistant end caps and bonded straps reduce the risk of cracking under repeated exposure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNSF\/ANSI 42 material safety compliance – no harmful leaching\u003c\/li\u003e\n  \u003cli\u003eABS core for increased structural durability\u003c\/li\u003e\n  \u003cli\u003eChlorine-resistant top and bottom end caps for longer life\u003c\/li\u003e\n  \u003cli\u003e25% thicker filtration fabric and heavy-duty straps for wear resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DAYEAR FC-2402 is aimed at hot tub owners who need a reliable, high-capacity replacement for Watkins 303279-style cartridges and equivalent models. It suits anyone maintaining midsize residential spas and portable hot tubs from Lifesmart, Freeflow, AquaTerra and related brands who want NSF-compliant materials, easier maintenance and a durable build that supports higher flow rates.\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 the DAYEAR FC-2402 compatible with Watkins 303279?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The FC-2402 is a compatible replacement for Watkins 303279 when your measurements match: 9 3\/8\" length, 5 1\/4\" diameter, 1 1\/2\" MPT bottom.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I clean this spa filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Clean the filter every two weeks for typical use and perform a deep clean or soak monthly to remove oils and residue.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DAYEAR","offers":[{"title":"Default Title","offer_id":56799485067604,"sku":"B0DHKMWJWZ","price":91.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/dayear-fc-2402-front-view.jpg?v=1786733478","url":"https:\/\/gardenluxe.co.uk\/products\/dayear-fc-2402-spa-filter-cartridge-42-sq-ft-replacement-for-watkins-303279-1-pack-trilobal-media-for-clearer-water","provider":"Gardenluxe Uk","version":"1.0","type":"link"}