From the Manufacturer
This Little Giant 3/4-HP 4-Inch Submersible Deep Well Pump is ideal for use in 4-Inch I.D. or larger wells. It is powered by the Franklin Electric motor and comes with a control box. It is designed for residential or agricultural water systems. The shaft stability and multiple flow channels keep small particles such as sand away from bearing surfaces. It has a built in check valve system and a built in suction screen.
4" submersible deep well pump. Powered by 3-wire, 230 volt Franklin Electric motor. Built-in check valve prevents backflow and ensures system pressure. Built-in suction screen and 1-1/4" NPT thermoplastic discharge head helps to prevent debris from cloggi ng impellers and provides full flow performance without the risk of corrosion.