The Unicel C-5623 pool and hot tub filter has the 2 inch top and bottom hole with a 5-5/16 inch diameter and 13-9/16 inches long. 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-5623
- Diameter: 5-5/16"
- Length: 13-9/16"
- Top: 2" Open
- Bottom: 2" Open
- Media: 23 sq.ft.
- Filter Media: 4oz Reemay
- Pleat count: 84
Compatible replacement for:
- Pentair 174821
- Filbur FC-1910
How long should Unicel pool and 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.
