Coleman Spas hot tub filters
The Unicel 2026 Replacement Guide lists 5 of the cartridges on this site for Coleman Spas. Many tubs use only one of these, so measure your old filter or check the number printed on its end cap.
| Cartridge (Pleatco / Unicel / Filbur) | Diameter × length | Sq ft | Models | Coleman Spas OEM # | Source |
|---|---|---|---|---|---|
| PRB25-IN / C-4326 / FC-2375 | 5" x 13-5/16" | 25 | not specified | 100586, 3301-2242 | Unicel p.32 |
| PAS35-F2M / 7CH-322 / FC-0419 / FC-0420 | 7-1/8" x 7-9/16" | 35 | not specified | 100520, 3301-2109 | Unicel p.32 |
| PCS50N / C-8450 / FC-3310 | 8" x 9" | 50 | not specified | 100593, 3301-2261 | Unicel p.32 |
| PRB50-IN / C-4950 / FC-2390 | 5" x 13-5/16" | 50 | not specified | 100533, 3301-2145 | Unicel p.32 |
| PCS75N / C-8475 / FC-3320 | 8" x 13" | 75 | not specified | 100594, 3301-2262 | Unicel p.32 |
If your Coleman Spas filter isn't here, it may not be in our checked list yet. We only publish matches we can confirm in a manufacturer catalog.