Sink Drain Pump System HP 1/3 hp Rated Voltage 115V AC Amps 9.7 A Switch Actuation Vertical Float Switch Electrical Connection Integral Pump Body Material Cast Iron Impeller Material Engineered Plastic Basin Material Polypropylene Basin Capacity 5 gal Basin Dia 12-1/5 in Basin Height 10-7/8 in Basin Inlet Diameter 1 1/2 in Outlet Diameter 1 1/2 in Vent Size 2 in Flow Rate @ 5 ft of Head 43 gpm Flow Rate @ 10 ft of Head 34 gpm Flow Rate @ 15 ft of Head 19 gpm