SINGLE FILTER NEW IN FACTORY PACKAGING POPULAR BRAND REPLACEMENT: Pleatco: PJ50-4 Unicel: C-9650 Filbur: FC-1460 DIMENSIONS: Diameter: 10" Length: 10" Top: Open Hole: 5 15/16" Bottom: Open Hole: 6" Filter Area: 50 sq ft Filter Material: Pleatco Advanced (4 oz/yard) Note: 4 oz filtration material is 33% thicker than the standard 3 oz. As a result it will last longer and filter more thoroughly. Alternate Filter Names: 42-2940-09-R | SD-00128 | CFT-50 | CFR-50 | 17-175-1380 | PJ50 | PJ 50 Used in pools / spas made by: Atlantic Pool Products | Cantar | Competition Pool Products | Jacuzzi | Jacuzzi Brothers | Kd Pools | Kitt Pools and other manufacturers