{"product_id":"toread-spa-filter-cartridge-trf-6430-fits-watkins-31489-pleatco-pwk30-10-5-x-5-7-8-50-micron-nsf","title":"TOREAD spa filter cartridge TRF-6430 — fits Watkins 31489 \/ Pleatco PWK30, 10.5\" x 5-7\/8\", 50-micron NSF","description":"\u003cp\u003e\u003cstrong\u003eTOREAD TRF-6430 is a direct-fit replacement spa filter cartridge designed to restore clean, clear water by capturing fine debris and protecting your spa circulation system.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt to match the dimensions and performance of Watkins 31489, Pleatco PWK30 and Unicel C-6430, this cartridge uses trilobal filtration fabric and reinforced end caps to improve dirt-holding capacity and resist damage from routine use. It installs like the original filter and is sized for common hot-tub housings, offering an affordable, certified option for maintaining water clarity and circulation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter match my current Watkins or Pleatco cartridge?\u003c\/h3\u003e\n\u003cp\u003eThe TRF-6430 is manufactured to the same key measurements and port sizes used by Watkins 31489, Pleatco PWK30 and Unicel C-6430, so it drops into compatible filter chambers without modification. TOREAD lists the cross-reference part numbers for easy compatibility checks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 10 1\/2” to fit standard housings\u003c\/li\u003e\n  \u003cli\u003eOutside diameter: 5 7\/8” for proper seal seating\u003c\/li\u003e\n  \u003cli\u003eTop\/bottom openings: 1 15\/16” to match plumbing connections\u003c\/li\u003e\n  \u003cli\u003eWorks as a direct replacement for listed model numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat level of filtration and debris capture can I expect?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge uses a tri-lobal synthetic fabric engineered to increase surface area and trap finer particles. With an effective media precision near 50 microns, it removes hair, sand, sediment and organic debris that commonly cloud spa water.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated filtration area: 30 square feet for improved dirt capacity\u003c\/li\u003e\n  \u003cli\u003eApproximately 50-micron capture for fine particulates\u003c\/li\u003e\n  \u003cli\u003eEnhanced surface texture reduces pressure spikes in the system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will the TOREAD TRF-6430 last and how do I care for it?\u003c\/h3\u003e\n\u003cp\u003eThe cartridge is built with thicker trilobal fabric and reinforced, chlorine-resistant end caps to extend usable life relative to many standard replacements. Regular monthly rinsing and occasional deep clean will maintain flow and extend service life, but avoid backwashing—this cartridge is not designed for that process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e25% thicker filter media versus basic cartridges\u003c\/li\u003e\n  \u003cli\u003eResistant end caps to reduce cracking from handling and chemicals\u003c\/li\u003e\n  \u003cli\u003eRecommended monthly rinsing; deep clean when pressure rises\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this filter certified and safe for spa water?\u003c\/h3\u003e\n\u003cp\u003eTOREAD TRF-6430 has been tested and certified by IAPMO to NSF\/ANSI 50 standards, meeting recognized safety and material guidelines for pool and spa components. The certification helps ensure the cartridge uses materials suitable for recreational water systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIAPMO-tested and NSF\/ANSI 50 certified materials\u003c\/li\u003e\n  \u003cli\u003eManufactured by TOREAD, an independent brand and PHTA member\u003c\/li\u003e\n  \u003cli\u003eDesigned for repeated service with industry-recognized quality controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this replacement is for: owners of spas or hot tubs using Watkins 31489, Pleatco PWK30, Unicel C-6430 or compatible cartridges who want a certified, longer-wearing spare at a reasonable price. It’s ideal for homeowners maintaining regular filtration schedules, service technicians stocking common replacements, and anyone looking to improve dirt-holding capacity and reduce filter-change frequency while keeping plumbing and seals aligned with factory specifications.\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: Will this fit my Watkins 31489 cartridge housing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The TRF-6430 matches key dimensions of Watkins 31489 and installs without modifications in compatible housings.\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 cartridge?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rinse monthly and deep-clean when filter pressure rises; avoid backwashing to prevent damage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TOREAD","offers":[{"title":"Default Title","offer_id":56842573775188,"sku":"B0D4V1V3KP","price":143.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/toread-trf-6430-front-view_582987a5-a3eb-4c82-aa88-527ba6f42750.jpg?v=1787076907","url":"https:\/\/gardenluxe.co.uk\/products\/toread-spa-filter-cartridge-trf-6430-fits-watkins-31489-pleatco-pwk30-10-5-x-5-7-8-50-micron-nsf","provider":"Gardenluxe Uk","version":"1.0","type":"link"}