Blue Falls Mfg. Ltd. (Canada) hot tub filters
The Unicel 2026 Replacement Guide lists 3 of the cartridges on this site for Blue Falls Mfg. Ltd. (Canada). 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 | Blue Falls Mfg. Ltd. (Canada) OEM # | Source |
|---|---|---|---|---|---|
| PWW10 / C-4310 / FC-3077 | 4-1/4" x 4" | 10 | not specified | not listed | Unicel p.29 |
| PRB25-IN / C-4326 / FC-2375 | 5" x 13-5/16" | 25 | not specified | not listed | Unicel p.29 |
| PRB50-IN / C-4950 / FC-2390 | 5" x 13-5/16" | 50 | not specified | not listed | Unicel p.29 |
If your Blue Falls Mfg. Ltd. (Canada) filter isn't here, it may not be in our checked list yet. We only publish matches we can confirm in a manufacturer catalog.