Sta-Rite S7M120 System:3 Modular Media SM Series Pool Filter, 300 Square Feet, 50-100 GPM System 3 modular media SM-Series cartridge filter Filter has 300-square feet effective area and 2-inch tank port size Durable two-piece tank housing constructed of Dura-Glas, Sta-Rite industry leading glass-reinforced composite resin Posi-Lok clamps provide safe, easy access to tank internals Measures 26-1/2-inch length by 47-inch height by 27-inch width