Guardian Spa Filter Replaces Unicel 7CH-322 Pleatco PaS35-F2M Filbur FC-0420 Artesian Master Coleman Spas Length 7-9/16'', Diameter 7-1/8'', Top- Handle, Bottom- 2" MPT threaded Replaces Pleatco: PAS35-F2M | Unicel: 7CH-322 | Filbur: FC-0420 Filter Area: 35 sq ft Artesian Spas, Coleman Spas, Down East, Ft. Wayne