Unicel 8-Pack 60-sq ft Pool Cartridge Filter

Replacement filter cartridges for Hayward CX1380RE, SwimClear C5520, and the Super Star Clear C5500. Keep your pool or spa sparkling clean with this replacement cartridge. Top and bottom hole diameter of 3 inches. Square feet: 137; Pleat count: 176. Dimensions (L x W x H): 7 x 7 x 32-13/16 inches. Specifications. Diameter: 7 inches. Pleat count: 176. Pleatco # PA137.