The Unicel C-5431 hot tub filter is a compatible replacement for the Watkins Hot Springs Spas OEM 31233 filter cartridge. 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-5431
- Diameter: 5-1/8"
- Length: 10-1/4"
- Top: 1-15/16" Open
- Bottom: 1-15/16" Open
- Media: 30 sq.ft.
- Filter Media: 3oz Reemay
- Pleat count: 157
Compatible replacement for:
- Pleatco PWK30V
- Filbur FC-3910
- Watkins OEM filter #31233
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.
