2-Pack Guardian Filters Replaces Unicel 8CH-950 8H5-200MB Pleatco PBF50-F2S PBF35-M Filbur FC-0536 Bull Frog - Antimicrobial Replaces Pleatco: PBF35-M, Unicel: 8CH-950, Filbur: FC-0536 Dimensions: Diameter 8"  Length 5-7/8"  Top: Handle  Bottom: 2" modified ACME Filter Area: 35 sq ft Reemay microban 3oz media Used in spas made by Bullfrog Spas 2-Pack Antimicrobial Guardian Filtration Products 8H5-200-02M