Pleatco Advanced hot tub filter PMA20-F2M is rated at 20 sq.ft which is used by Master Spas in the contractor series for the model CS415. This filter is also a compatible replacement for the Unicel 4CH-252, OEM X268521.
Top View
Outside Diameter 4-3/4" (121mm)
Top Closed With Handle
Side View
Filter Length 8-1/16" (205mm)
Washable Pleats With One Band
Bottom View
Bottom MPT fine Threads Referenced as 2" (51mm)
Actual Outside Diameter of Threads 2-11/32" (59mm)
Compatible replacement for:
- 4CH-252
- OEM X268521
- Fits Contractor Series CS415
- FIL11100303