Sink Drain Pump System HP 1/2 hp Rated Voltage 115V AC Amps 4.9 A Switch Actuation Vertical Float Switch Electrical Connection Piggyback Pump Body Material Cast Iron Impeller Material Cast Iron 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 42 gpm Flow Rate @ 10 ft of Head 38 gpm Flow Rate @ 15 ft of Head 32 gpm Flow Rate @ 20 ft of Head 24 gpm