The Acu Drive XS™ offers built-in intelligence for increased performance in all aquatic pump applications. Specified to save energy, space, costs and time, the Acu Drive XS offers very fast return on investment. The Acu Drive allows the pump to run at its most effiecient point on the curve. Preventative maintenance costs will drop due to motor protection, motor soft start, and a significant decrease in water hammer protecting the shaft and impeller. Up to an additional 5% savings due to the Acu Drive's ability to balance power phase and harmonic suppression. Built with powerful standard and optional features specifically designed for energy optimization, the Acu Drive is perfectly matched with the full line of Pentair Water Commercial Pool and Aquatics' pumps.