The Unicel C-4402 hot tub filter cartridge has a closed top with cone handle and 1-7/8 inch hole on the bottom with slots (keyed). For optimal fit and performance, verify that this filter cartridge matches the dimensions of the old filter in your spa. ;
Filter details:
- Unicel P/N: C-4402
- Diameter: 4-5/8"
- Length: 9-3/4"
- Top: Handle
- Bottom: 1-7/8" Open With Slots
- Media: 20 sq.ft.
- Filter Media: 4oz Reemay
- Pleat count: 138
Compatible replacement for:
- Pleatco PGS25-XP4 (formerly PGS25)
- Unicel C-4324
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 18 months or more, depending on your level of hot tub use and filter cleaning routine.
