Suitable for commercial, industrial, agricultural and municipal applications, National Pump Co.'s submersible turbine pumps are capable of producing capacities to 10,000 gpm, with heads up to 1,440 feet. All 6-inch pumps are threaded construction; 7-inch to 20-inch pumps are flanged construction. Cast iron, enameled bowls are combined with bronze impellers, and motor brackets are designed to accept all NEMA-flanged motors. National Pump Co., Card No. 214