The RJS-75-PREM clean water pump is ideal for the supply of fresh water to rural homes, farms, and cabins that have suction lifts down to 25 feet. Its rugged cast-iron construction is designed for years of service and reliability. Includes a factory pre-set 30/50 pressure switch and pressure gauge. 115/230 Volt motor is factory set for 230 Volts but can easily be changed to 115-Volts - follow the instructions in the owner's manual. Please ensure the voltage on the pump matches the power source voltage otherwise the pump will not operate at full power.