Sink Drain Pump System, HP 1/3 hp, Rated Voltage 115V AC, Amps 4.1 A, Switch Actuation Vertical Float, Switch Electrical Connection Piggyback, Pump Body Material Cast Iron, Impeller Material Stainless Steel, Basin Material HDPE, Basin Capacity 6 gal, Basin Height 13 3/8 in, Basin Inlet Diameter 1 1/2 in, Outlet Diameter 1 1/2 in, Vent Size 1 1/2 in, Flow Rate @ 5 Ft. of Head 36 gpm, Flow Rate @ 10 Ft. of Head 30 gpm, Flow Rate @ 15 Ft. of Head 25 gpm, Flow Rate @ 20 Ft. of Head 12 gpm