Hallmark Industries MA0343X-4 Deep Well Submersible Pump, 1/2 hp, 110V, 60 Hz, 25 GPM, 150' Head, Stainless Steel, 4" Pump, Deep Well Submersible Pump, 1/2HP, 110V 60HZ, 25 Gpm, Stainless Steel, for 4" or bigger well, long life 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 Use 115V power to run the pump. 110V is a nominal voltage - covers from 100 V to 130V. This pump has a max head of 150feet, which is to pump into an open tank, not a pressure tank. Please read the Pump Selection Guide provided under the product details.