SpiroPure Replacement for Pleatco PMA40L-F2M Master Spa Twilight X268543 X268365 Unicel 6CH-402 Filbur FC-0317 Hot Tub Spa Pool Replacement Cartridge (Pack of 4)

Outer Diameter: 6” Length: 9-1/4” Top Style: Closed Handle; Bottom Style: 2” MPT Compatible with Pleatco PMA40L-F2M; Maser Spa Twilight X268543, X268365; Unicel 6CH-402; and Filbur FC-0317 Hot Tub Spa Filters. SpiroPure pool and spa filter cartridges offer long-lasting, durable filter media with high dirt holding capacity for clear, sparkling water in your pool or hot tub spa. A strong inner core means increased strength without hindering water flow or filtration performance. Easy to install, durable filter cartridges that allow for high filtration performance and efficiency