Flint & Walling Deep Well Submersible Pump, Number of Wires 2, Control Box Required No, 11 GPM, 1 HP, Voltage 230, Amps AC 10.4, 1 Phase, Stages 13, GPM @ Vertical Depth to Water @ 20 Ft @ 30 PSI 13, GPM @ Vertical Depth to Water @ 100 Ft @ 30 PSI 12, GPM @ Vertical Depth to Water @ 200 Ft @ 30 PSI 10, GPM @ Vertical Depth to Water @ 20 Ft @ 50 PSI 12, GPM @ Vertical Depth to Water @ 100 Ft @ 50 PSI 11, GPM @ Vertical Depth to Water @ 200 Ft @ 50 PSI 8, Built-In Check Valve Yes