Pentair 160340 Clean & Clear Plus Fiberglass Reinforced Polypropylene Tank Cartridge Pool Filter, 320 Square Feet, 120 GPM (Residential) Clean & Clear Plus pool and spa cartridge filter Large filter area for increased dirt capacity; 1-1/2-inch and 100 percent drain clean-out port.Pentair aquatic systems does not recommend flow rates above 150 GPM Continuous high flow internal air relief and high flow manual air relief valve; NSF listed and superior strength Injection molded tank and black bulkhead unions; balanced hydraulic flow and tension control clamp It has effective filtration area 320-square feet and flow rate is 120-GPM; measures 22-inch length by 39-inch height by 22-inch width