Superior Pump model 92911 1/2 HP primary cast iron submersible sump pump with vertical piggy-back float switch and backup sump pump, is pre-assembled and ready for installation. The primary pump will move water up to 4200 gallons per hour and backup pump will move up to 1380 gallons per hour. Kit includes 87 decibel alarm, electronic control panel with indicator lights, battery box, mounting hardware, 2 AMP DC charger (12 volt deep cycle battery not included).