Hallmark Industries MA0419X-12A Deep Well Submersible Pump, 2 hp, 230V, 60 Hz, 35 GPM, 400' Head, Stainless Steel, 4" Pump, Deep Well Submersible Pump, 2HP, 230V 60HZ, 35 Gpm, Stainless Steel, for 4" or bigger well, long life. Pump must use torque arrestors to secure. 2 wire pump with built in control box- DOES NOT require external control box; Industrial grade heavy duty, good for home usage; Built in thermal protection American company