Unicel C-8414 Replacement Filter Cartridge for 150 Square Foot Waterway Clearwater II 150, Waterway Pro Clean 150, Jandy CS150 Diameter: 8 15/16-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 Pleat count: 215; filter media: 4-ounce reemay 2040; filter area: 150 square feet Get more efficient filtration and better water clarity with Unicel filters Longer time between cleanings; meets oem specifications