• Back-up Unit Runs on Either AC or DC Power
• Works as Both a Primary and Battery Back-Up System
• Comes Complete with Two Heavy Duty 1/3HP 115V StormPro Sump Pumps
• Alternator Will Override to the Other Pump in Case of a Failure
• Built in Alarm and Indicator Lights for Added Protection
• Uses Maintenance Free AGM Batteries
• UL/CSA Listing Ensures Reliability