Atera Spas (Four Seasons Home Resort Products) hot tub filters
The Unicel 2026 Replacement Guide lists 1 of the cartridges on this site for Atera Spas (Four Seasons Home Resort Products). 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 | Atera Spas (Four Seasons Home Resort Products) OEM # | Source |
|---|---|---|---|---|---|
| PWW50P3 / 6CH-940 / FC-0359 | 6" x 7-5/8" | 50 | not specified | not listed | Unicel p.29 |
If your Atera Spas (Four Seasons Home Resort Products) filter isn't here, it may not be in our checked list yet. We only publish matches we can confirm in a manufacturer catalog.