Gaurdian pool/spa filter fits: Pleatco: PIN28,Unicel: C-5330,Filbur: FC-3748 intex sand-n-sun
Pleatco: PIN28 | Unicel: C-5330 | Filbur: FC-3748 Diameter: 5 7/8" Length: 12 3/16" Top: Open Hole: 2" Bottom: Open Hole: 2" Filter Area: 30 sq ft Filter Material: Reemay (3 oz/yard)