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: 172; filter media: 4-ounce reemay 2040; filter area: 120 square feet * Get more efficient filtration and better water clarity with Unicel filters * Longer time between cleanings; meets oem specifications