*The machine is powered by electric. *It's the newest patented fluid exchanger with up tp 100% fluid replacement. *Easy to operate, fast service, small footprint, self storing hoses, manuverability. *Fluid check sight tubes. *With our unique design for PC-500, it is the best solution for steering fluid exchange. *Dual pumps installed, pump in new fluid while extracting out waste fluid. *The machine completely extracts out waste fluid of power steering.