Cal Spas pool filters
The Unicel 2026 Replacement Guide lists 1 of the cartridges on this site for Cal Spas. Most filter models 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 | Cal Spas OEM # | Source |
|---|---|---|---|---|---|
| PA50 / C-7656 / FC-1240 | 7" x 19-3/4" | 50 | not specified | not listed | Unicel p.30 |
If your Cal 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.