Master Plumber, Ace In The Hole, 12V, Emergency Automatic Battery Back Up Sump Pump System, 23 Gallons Per Minute, 3.3A Charger, Single Battery Case, Control Panel, Check Valve, Mounting Bracket & Fittings, Maximum Pumping Capacity To 1,380 Gallons Per Hour, Easy Installation, Monitors Sump Activity & Staged Charging Technology, Completely Restores Battery To A Full Charge, Standard Charger Recharges Battery In 42 Hours, 2 Year Warranty.