The Unicel 7CH-502 replacement hot tub filter with 2" male MPT threaded bottom is a compatible replacement for the Coleman Spas OEM 100522 and 3301-2111 filter cartridges. Coleman Spas has used a range of filter sizes over the years. Therefore it’s best to confirm that this Unicel cartridge is the same size with the same threads as the existing cartridge in your model to ensure proper fitment and performance.
Filter details:
- Unicel P/N: 7CH-502
- Diameter: 7"
- Length: 14-3/4"
- Top: Handle
- Bottom: 2" MPT (not pictured)
- Media: 50 sq. ft.
- Filter Media: 3oz Reemay
- Pleat count: 144
Also a compatible replacement for:
- Pleatco PCS50-F2M
- Filbur FC-0460
- Coleman Spas OEM 100522
- Coleman Spas OEM 3301-2111
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.
