Watchdog Big Combo Connect Sump Pump System, 1/2 HP, Battery Backup

BWSP, Combo Sump Pump System, Primary and amp; Back Up Sump Pump System, Pre-Assembled, Ready For Easy Installation, Includes .5 HP, 2.820 GPH At 10 feet , A-C Sump Pump and amp; Watchdog Special Back Up Sump Pump, 1730 GPH At 10 feet , Dual Redundant Floats On Each Switch, Battery Not Included, 1 Float Fail To Activate The Pump, The Second Float Takes Over, Operates As Long As It Is Receiving AC Power, If Power Is Interrupted, Or More Water Is Coming Into The Sump Than The AC Pump Can Handle, The Back Up Sump Pump Will Begin Pumping Automatically, Features Diagnose A Problem and amp; Sound An Alarm, A Light On The Display Panel Of The Control Unit Will Indicate The Cause Of The Alarm and amp; The Corrective Action. 1/2hp cast iron