Portable Battery Powered Gas/Liquid Transfer Pump, Battery Operated Fuel/Water Transfer Pump Up to 2.2 GPM, Multi-Use Electric Siphon Pump for Gas Fuel Water Diesel. HIGHLY EFFICIENT PERFORMANCE: With a siphon rate of 2.2 gallons per minute or 7 quarts of liquid pumped, it is an efficient transfer pump for a variety of non-corrosive liquids.