Premium Leisure hot tub filters
The Unicel 2026 Replacement Guide lists 3 of the cartridges on this site for Premium Leisure. 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 | Premium Leisure OEM # | Source |
|---|---|---|---|---|---|
| PRB35-IN / C-4335 / FC-2385 | 5" x 9-1/4" | 35 | not specified | not listed | Unicel p.53 |
| PTL47W-P4 / 6CH-47 / FC-0315 | 6" x 8-1/2" | 47 | not specified | not listed | Unicel p.53 |
| PWW50L / 4CH-949 / FC-0172 | 5" x 13-3/16" | 50 | not specified | not listed | Unicel p.53 |
If your Premium Leisure filter isn't here, it may not be in our checked list yet. We only publish matches we can confirm in a manufacturer catalog.