1 Pack MADE IN THE USA POOL AND SPA FILTER NEW IN FACTORY PACKAGING MEASUREMENTS: • Diameter: 5" • Length: 23 5/8" • Top: Open Hole: 2 1/8" • Bottom: Open Hole: 2 1/8" • Filter Area: 95 sq ft • Filter Material: Reemay Polyester (3 oz/yard) Popular brand part numbers: Pleatco: PCAL100 Unicel: C-4995 Filbur: FC-2940 Replaces the following filters: • Alternate Filter Names: 817-1000 | Waterway 100 | 17-175-1840 | APCC7268 | 19501 | PCAL 100 | PCAL100-M | PCAL100-Z Used in pools / spas made by: Acryx-Maax Spas | Cal Spas | Coast Spas | Infinity Spas by Maax | J.E.M. Spas | Majestic Industries | Qca Spas | Savannah Spas | Waterway Plastics and other manufacturers