Submersible Sump Pump HP 1/2 Rated Voltage 230V AC Hz 60 Hz Amps 4.7 A Switch Actuation Vertical Float Switch Electrical Connection Integral Off Point 3 in On Point 9 1/2 in Body Material Cast Iron Impeller Material Plastic Shaft Seal Material - Pumps Carbon Ceramic Flow Rate @ 5 ft of Head 72 gpm Flow Rate @ 10 ft of Head 61 gpm Flow Rate @ 15 ft of Head 45 gpm Flow Rate @ 20 ft of Head 25 gpm Max Head 23 ft Min Sump Pit Dia 18 in Body Dia 10 1/8 in