Pleatco hot tub filter PRD17.5SF-Pair is a pair of filters that are stacked one on top of another in the hot tub filter canister. Typically used in older style hot tubs where these filters are removed and installed through the front of the skimmer. This pair of filters is also a compatible replacement for the Unicel C-4401, Master Deluxe M40352 and the Waterway filter model 817-3510.
Top View
Outside Diameter 5" (127mm)
Top Open Hole 2-1/8" (54mm)
Side View
Each Filter Length is 4-5/8" (117mm)
Filters Stacked Length is 9-1/4" (235mm)
Bottom View
Outside Diameter 5" (127mm)
Bottom Open Hole 2-1/8" (54mm)
Compatible replacement for:
- Waterway 817-3510
- Unicel C-4401
- Master Deluxe 40352
- Pentair R173432
- Pentair 17-2606
- Sundance - Jacuzzi 6000-134
- PA-AP40352
