"This industrial-duty Cast Iron Self-Priming Sprinkler Booster Water Pump features a single-phase 115/230V motor and cast iron construction with a stainless steel impeller for strength and durability. Self-Priming Yes, Flow GPH 3,480, Port Size in. 1 1/2, HP 1, Suction Port in. 1 1/2, Discharge Port in. 1 1/2, Volts 115/230, Max. PSI 46, Max. Total Head ft. 105, Max. Suction Lift ft. 20. Buna-N mechanical seal Built-in check valve Removable dual volute design"