AquaMotion’s AquaMotionSMART Einstein series ECM circulators feature advanced variable-speed technology that adapts to system demand to maximize performance and efficiency. It offers high performance while maintaining low power usage. It also features easy, single-button speed control with LED speed and Watt display, and an automatic night-setback feature that saves money while you sleep. All models come with four-bolt universal flange design to save on inventory AHR Booth #7178