SINGLE PACK FILTER MADE IN THE USA NEW IN FACTORY PACKAGING POPLUAR BRAND REPLACEMENTS: Pleatco: PCD50N Unicel: C-7350 Filbur: FC-3963 DIMENSIONS: Diameter: 7" Length: 10 3/4" Top: Handle Bottom: Open Hole: 2 11/16" Filter Area: 50 sq ft Filter Material: REEMAY (3 oz/yard) Alternate Filter Names: 1019401 | 73532 | AK-60033 | APCC7499 | 15051 | PCD50-N Used In Pools / Spas Made By: Caldera Spas | Hot Spot Spas | Watkins Mfg. and other manufacturers