Ballast King Bronze DC Pump without Switch - 15 GPM. The Ballast King is designed to pump water into Wakeboard Liquid Ballast Tanks and when reversed will also pump water out of them. It has a flow rate of 15 gallons per minute, so it can fill most ballast tanks in about five minutes. It is equipped with a Run-Dry Protection Device (patent pending) to automatically shut-off the pump and protect the impeller from run-dry damage should the pump be mistakenly left on after the Ballast Tank is empty. Features Flow rate 15 US gallons/min (57 Litres/min) Self-priming from dry up to 1.2m (4ft) Adds approx 125lbs (56kgs) of ballast per minute Reversible to both fill and empty tanks Simple design means fewer wearing parts ISO 8846 MARINE (Ignition protection) Specifications Body Material: Bronze Impeller: Jabsco Neoprene Compound Seal: Lip Type Voltage: 12V Amp Draw: 19A Fuse Size: 25A Dimensions: 3.62" x 8" x 4.75" Weight: 8.6 lbs