Unicel 100-sq ft Pool Cartridge Filter

For use with: Cal Spas, Hayward pool products (CX1100RE), and more. Tough urethane end caps assure durability for the life of the cartridge. Sharp pleat folds maximize spacing between pleats. Pleat count: 153. Bottom and top end cap: Open with molded gasket 4-inch inside diameter. Manufacturer warranty: 1-year warranty. Dimensions (L x W x H): 23.3 x 9 x 9 inches. Model Number: C8610.