Emerald Spas pool filters

The Unicel 2026 Replacement Guide lists 1 of the cartridges on this site for Emerald 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 × lengthSq ftModelsEmerald Spas OEM #Source
PA225 / C-4325 / FC-1220 / FC-06404-5/8" x 11-7/8"25not specifiednot listedUnicel p.35

If your Emerald 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.