Battery Backup Sump Pump, Pump Voltage 12V DC, Amps @ 10 Ft. of Head 10 A, Switch Actuation Dual Micro Reed, Flow Rate @ 10 Ft. of Head 30.8 gpm, Pump Body Material ABS, Alarm Output Audible, Dry Contact Remote Terminal, Visual, HP 1/3 hp, Charger Input Voltage 115V AC, Charger Output Voltage 12, Charger Hz 60, Required Battery Battery, Sold Separately, Max. Head 16 ft, Impeller Material Polycarbonate, Shaft Seal Material - Pumps Carbon, Ceramic, Rulon, On Point Adjustable, Off Point Adjustable