The Unicel 6CH-35 hot tub filter cartridge with 1-1/2 inch male MPT threads on the bottom and closed top with a handle has been used by a variety of different hot tub manufacturers in a range of spa models over the years. Please confirm this filter is the same size as the cartridge in your spa to ensure proper fitment and performance.
Filter details:
- Unicel P/N: 6CH-35
- Diameter: 6"
- Length: 9-7/8"
- Top: Handle
- Bottom: 1-1/2" MPT (Fine thread)
- Media: 35 sq. ft.
- Filter Media: 3oz
- Pleat count: 188
Compatible replacement for:
- Pleatco PTL35W-P4 and
- Filbur FC-0320.
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.
