{"product_id":"poolpure-spa-cartridge-filter-plfc-6430-m-30-sq-ft-trilobal-media-fits-watkins-31489-filbur-fc-3915m","title":"POOLPURE spa cartridge filter PLFC-6430-M — 30 sq ft trilobal media, fits Watkins 31489 \/ Filbur FC-3915M","description":"\u003cstrong\u003ePOOLPURE PLFC-6430-M is a direct-fit replacement spa cartridge filter with 30 sq. ft. of trilobal fabric for improved debris capture and stable water flow.\u003c\/strong\u003e\n\n\u003cp\u003eIf your spa or hot tub needs a reliable cartridge that fits Watkins 31489 or Filbur FC-3915M plumbing, the POOLPURE PLFC-6430-M offers a high-surface-area media and manufacturer-grade tolerances. Designed as a compatible replacement, this cartridge balances filtration efficiency with easy upkeep so you get clearer water without fussing over complicated parts. It meets tested safety standards and is built from multilobal fibers that trap fine particles while maintaining consistent pressure across your system.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the PLFC-6430-M improve water clarity?\u003c\/h3\u003e\n\u003cp\u003eThe PLFC-6430-M uses trilobal filtration fabric to increase surface area and capture finer debris than standard pleated media. That means less visible dust, hair, and plant matter in your spa with sustained flow rates, so pumps work efficiently and water stays clearer between cleanings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e30 square feet of filtration area for extended dirt-holding capacity\u003c\/li\u003e\n  \u003cli\u003eTrilobal fiber geometry captures finer particles down to roughly 50 microns\u003c\/li\u003e\n  \u003cli\u003ePrecision pleating reduces pressure spikes and maintains circulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cartridge fit my Watkins or Filbur spa model?\u003c\/h3\u003e\n\u003cp\u003eThe PLFC-6430-M is manufactured to match the critical dimensions of Watkins 31489 and Filbur FC-3915M replacements, making it compatible with many common models. Check the printed dimensions against your existing cartridge to confirm a proper fit before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLength: 10 1\/2\"; Outside diameter: 5 7\/8\"\u003c\/li\u003e\n  \u003cli\u003eTop\/bottom opening: 1 15\/16\"; Filtration area: 30 sq. ft.\u003c\/li\u003e\n  \u003cli\u003eWorks with several listed part numbers (for reference only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is maintenance and cleaning?\u003c\/h3\u003e\n\u003cp\u003ePOOLPURE engineered the fabric to release trapped debris more readily during rinsing, so routine maintenance stays quick and predictable. Monthly rinsing is usually sufficient for typical backyard use, though frequency depends on bathing load and local conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUniform trilobal fabric sheds trapped particles during spray cleaning\u003c\/li\u003e\n  \u003cli\u003eSimple rinse or soak cleaning extends usable life between replacements\u003c\/li\u003e\n  \u003cli\u003eFollow monthly checks for optimal performance and pump health\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and performance standards does this cartridge meet?\u003c\/h3\u003e\n\u003cp\u003eThis cartridge has undergone industry testing and meets recognized material-safety benchmarks to ensure reliable use in pools and spas. It’s manufactured by POOLPURE, a member of industry organizations and tested to accepted filtration criteria that focus on safe materials and consistent particle removal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIAPMO-tested to NSF\/ANSI 50 standard for material safety\u003c\/li\u003e\n  \u003cli\u003eDesigned to remove common contaminants like hair, sand, sediment, and organic debris\u003c\/li\u003e\n  \u003cli\u003eBuilt to industry specifications for interchangeability and performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The POOLPURE PLFC-6430-M is ideal for spa and hot tub owners who need a dependable, easy-to-clean cartridge that matches Watkins and Filbur legacy part sizes. It suits seasonal homeowners, rental property managers, fitness centers with spa features, and anyone wanting consistent circulation and clearer water without specialty parts. If you value tested materials, straightforward installation, and longer time between cleanings, this replacement cartridge is designed to fit into common systems and keep your spa running smoothly.\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 PLFC-6430-M an exact OEM part?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It is a compatible replacement designed to match OEM dimensions and performance, not an original manufacturer part.\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 monthly under normal use; increase frequency with heavy bather load or visible debris accumulation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"POOLPURE","offers":[{"title":"Default Title","offer_id":56843398873428,"sku":"B08B8CJ2LQ","price":156.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/poolpure-plfc-6430-m-front-view.jpg?v=1787079576","url":"https:\/\/gardenluxe.co.uk\/products\/poolpure-spa-cartridge-filter-plfc-6430-m-30-sq-ft-trilobal-media-fits-watkins-31489-filbur-fc-3915m","provider":"Gardenluxe Uk","version":"1.0","type":"link"}