The Pleatco Advanced PMA40L-F2M-M is a 40 sq. ft. replacement spa filter cartridge engineered for the Master Spas Twilight series. Built with Pleatco's Point Bonded Pool Filtration Fabric infused with Microban® antimicrobial protection, this cartridge helps inhibit the growth of bacteria, mold, and mildew on the filter media — keeping your spa cleaner between services. The "-M" designation identifies this as the Microban antimicrobial variant of the standard PMA40L-F2M. ⚠️ IMPORTANT: Verify Cartridge Quantity for Your Twilight Model Many Master Spas Twilight models use a single cartridge; however, some larger Twilight spa models require two cartridges for a complete filter service. Please verify the number of cartridges your specific spa model requires before ordering. Check your owner's manual or the existing filter count in your spa's filter housing. Specifications Filter Area 40 sq. ft. Length 9 1/4" Outer Diameter 6" Material Point Bonded Pool Filtration Fabric with Microban® Antimicrobial Protection Top Cap Handle Bottom Cap 2" MPT Application Spa Pleatco Advanced Features Helps achieve and maintain cleaner water with every filtration cycle. Designed to deliver superior filtration and hassle-free maintenance, with a fit that works with most existing pool filtration systems. Features Pleatco Point Bonded Pool Filtration Fabric, with finer fibers for improved flow rate and greater dirt-capture surface area. Built with Pleatco's Free Flow Core — an open-center design that maximizes the space available for water to reach more filter fabric faster, reducing operating pressure on the system. Maximizes system efficiency with extended intervals between cleanings, less frequent replacements, and lower energy consumption. Microban® Antimicrobial Protection — built into the filter media to help inhibit the growth of bacteria, mold, and mildew on the cartridge surface. Does not sanitize spa water or replace chlorine/bromine. Fits into: OEM Brand Product Name / Model OEM Part Number Notes Master Spas Twilight Series X268532 Select Twilight models. Verify quantity required for your model. (This is not an exhaustive list. These are Pentair & Pleatco recommended compatibility. Please check the dimensions of your existing filter cartridge against the above specifications before ordering.) Cross-Reference / Also Replaces: Brand Part Number Type Notes Unicel C-6439 Unicel Equivalent Filbur FC-1007 Filbur Equivalent (This is not an exhaustive list. These are Pentair & Pleatco recommended compatibility. Please check the dimensions of your existing filter cartridge against the above specifications before ordering.)
