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 Thermoplastic Impeller Material Plastic 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 40 gpm Flow Rate @ 10 ft of Head 36 gpm Flow Rate @ 15 ft of Head 32 gpm Flow Rate @ 20 ft of Head 23 gpm