B08YWHJCPN SpiroPure Replacement for Freeflow Spas FF-100 Unicel 4CH-23 Pleatco PFF25TC-P4 Filbur FC-2400 Hot Tub Spa Pool Filter Replacement Cartridge (Case of 6)

Make sure this fitsby entering your model number. Outer Diameter: 4 15/16″ Length: 6 5/8″ Media: 25 SF 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