Waterway, CMP, Sunbelt Spa

The Unicel 6CH-941 hot tub filter has a unique size 1-3/4 inch male slip bottom with a closed top and handle. Made with REEMAY premium trilobal filtration fabric for longer service life. Filter details: Part no: 6CH-941 Diameter: 6" Length: 8-1/4" Top: Handle Bottom: 1-3/4" Male Slip Media: 45 sq.ft. Filter Media: 3oz Reemay Pleat count: 225 Also compatible replacement for: Pleatco PWW100ST-P3 Filbur FC-0360 25253 25254 Waterway 817-0011 How long should Unicel hot tub filters last? While most hot tub filters need to be changed every six to twelve months, Unicel brand filters are made with REEMAY premium trilobal filtration media that delivers 45% more surface area over standard rounded filter fibres and can last up to two years or more, depending on your level of use and cleaning routine.