Hot tub filter replacement used in select Master Spas contractor series model CS415. This filter is also a compatible replacement for the Unicel 4CH-252, and closed top single filter alternative for the PMA-R3 X268548.
Filter details:
- ProAqua P/N: C-4252
- Diameter: 4-11/16″
- Length: 8-1/16″
- Top: Closed with handle
- Bottom: 2″ MPT Threads
- Media: 20 sq.ft.
- Filter Media: 3oz
Compatible replacement for:
- Pleatco PMA20
- Filbur FC-0140
- Unicel 4CH-252
- OEM X268521
- Fits Contractor Series CS415
- FIL11100303
How long should ProAqua pool and hot tub filters last?
While most hot tub filters need to be changed every six to twelve months, ProAqua brand filters are made with premium bonded 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.
