The Unicel 7Ch-975 hot tub filter with 1-1/2 inch course SAE threaded bottom is a compatible replacement for Dimension One Spas that use the OEM 1561-12 filter cartridge. Dimension One Spas have used several different filter sizes in their models and series 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 no: 7CH-975
- Diameter: 7"
- Length: 10-1/2"
- Top: Handle
- Bottom: 1-1/2" SAE Thread (Coarse)
- 52 sq.ft.
- Filter Media: Reemay
- Brand: Unicel Premium
Also compatible replacement for:
- Dimension One Spas OEM 1561-12
- Pleatco PDO75P3
- Filbur FC-0475
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.
