AquaMotion’s new AquaMotionSMART Einstein series of ECM circulators provides advanced variable-speed technology that adapts to system demand to maximize performance and efficiency. The Einstein series offers high performance while maintaining low power usage. The circulators feature easy single-button control with LED speed and watt display, and a unique automatic night-setback feature that saves money while the end user sleeps. All models come with AquaMotion’s four-bolt universal flange design to save on inventory.