Ridgid 85952 SP-500P Black 1/2 Horsepower Pedestal Pump Cast iron pump housing and and impeller for abrasion resistance and longer life Stainless steel impeller drive shaft, column and impeller plate resist corrosion Top suction intake filters debris for increased reliability 1-1/2" discharge for easy installation and compliance to building codes. Gallons per hour at 10-foot :2400 11" footprint for installations into basins 11" or wider.