Buy Now Unicel C-8610 Replacement Filter Cartridge for 100 Square Foot Hayward CX1100RE

100 Square Foot Hayward CX1100RE. Replacement for: Cal Spas; Hayward Pool Products CX1100RE; Get more efficient filtration and better water clarity with Unicel filters; Longer time between cleanings; meets OEM specifications Diameter: 8 1/2-inch; length: 23 5/16-inch Top end cap: open with molded gasket, 4 0/0-inch inner diameter; bottom end cap: open with molded gasket, 4 0/0-inch inner diameter