Pleatco: PIN20 | Unicel: C-5315 | Filbur: FC-3752 • Diameter: 5 7/8" • Length: 10 1/16" • Top: Open Hole: 1 15/16" • Bottom: Open Hole: 1 15/16" • Filter Area: 15 sq ft • Filter Material:ReeMay (3 oz/yard) Alternate Filter Names: 59901W | 59905E | 59005W Easy Set | 59905 | Intex Model B | APCC7491 | 56633 | 56634 | 56621 | 56622 | 56611 | 56612 | Used in pools / spas made by: Intex Pools | Krystal Clear and other manufacturers