1 1/4 in, Max.
Submersible Pump @ 40 PSI 5 gpm, Flow Rate @ 150 Ft. Submersible Pump, HP 1/2 hp, Rated Voltage 230 VAC, Amps 5 A, Phase - Pumps 1, Number of Stages 8, Number of Wires 3, Discharge Head Material Thermoplastic, Impeller Material Acetal, Shaft Material 17-4 PH Stainless Steel, Nominal Flow Rate 5 gpm, Flow Rate @ 100 Ft.