Johnson Pump Pumps Rogue Ballast Pump 13.5 GPM 12V. 5 Gallon Per Minute Pump. Designed to quickly fill or when reversed drain a ballast tank. Capable of pumping fresh or sea water the pumps robust design can handle the rigors of continuous duty usage is reversible and has a built-in thermal overload for added protection. Polarity reversing switch kit. Features of Johnson Pump 10-24690-18 Pumps Rogue Ballast Pump 13.5 GPM 12V Pump for Wake Board Boats Run dry Impeller Fill and reverse pump Thermal Overload Motor Protection Package Contents: Johnson Pump 10-24690-18 Pumps Rogue Ballast Pump 13.5 GPM 12V Johnson Pump 10-24690-18: Pumps Rogue Ballast Pump 13.5 GPM 12V