Polaris EV96 Automatic Battery Watering System Easy Installation with Instructions Included ***Requires a Flow-Rite Hand Pump watering supply (BA-MS-630) or equivalent*** Pro-Fill on-board battery watering system is the only system that has been specifically designed for the golf car/utility vehicle application The superior features include patented manifolds, standard flame arrestors, three port swivels, clampless polypropylene tubing, and easy install winged caps.