The Unicel C-4326 cartridge filter is a 25 sq. ft. filter. This popular item is one of the standard replacement filters which is able to fit in many different spas. You may also like the C-4950 which is a 50 sq. ft. filter of the same size, which will double your filtration.
- Replacement filter cartridge – 25 sq ft
- Pleat count: 106.
- Diameter: 4 15/16 ; length: 13 5/16
- Top end, open: 2-1/8″ inner diameter; bottom end, open: 2-1/8″ inner diameter