4 in. submersible deep well pump. Powered by 3-wire 230V Franklin Electric motor. Built-in check valve prevents backflow and ensures system pressure. Built-in suction screen and 1-1/4 in. NPT thermoplastic discharge head helps to prevent debris from clogging impellers and provides full flow performance without the risk of corrosion. For 4 in. I.D. or larger wells from depths of 100 feet. 12 GPM.