The Wayne 1/2 HP and 12-Volt Upgraded WSS30V includes an all new back-up pump with an even more rugged construction. Drop in ready and easy install within about 15 minutes. The WSS30V provides additional protection and peace of mind when the power is out. Including an audible alarm, rest assured that you'll be notified as soon as the back up pump on the WSS30V turns on. Battery Sold Separately.. Amperage (A): 75 A. Battery Life (hours): 6 hr. Battery Type Required: 12-volt,Battery Not Included. Discharge Flow @ 0 ft. (gallons/hour): 5100. Discharge Flow @ 0 ft. (gallons/min): 85. Discharge Flow @ 10 ft. (gallons/hour): 3840. Discharge Flow @ 10 ft. (gallons/min): 64. Housing Material: Steel. Impeller Material: Thermoplastic. Included: Control Box. Number of Batteries Required: 1. Pack Size: 1. Product Weight (lb.): 30 lb. Returnable: 90-Day. Voltage: 120v,12v. Certifications and Listings: No Certifications or Listings. Product Depth (in.): 23.5 in. Product Height (in.): 14 in. Product Width (in.): 18.25 in. Voltage: 12v. Voltage: 120v