Ballast PumpToday"s Wakeboard and Ski tow boats need to be able to take on water ballast to modify their wake formation. A development of our tried and tested Puppy Pumps lets these specialist craft rapidly take on and dump ballast, while modern electronics guard against dry running damage to the impellerThe choice of motor boat builders for ski and wakeboard ballast systems.Unique impeller compountHandles debrisReversible8 GPM flowEasy service Product : JABSCO WAKEBOARD BALLAST PUPPY 12 W/ REVERSING SWITCH Manufacturer : JABSCO Manufacturer Part No : 18220-1127 UPC : 671880565189