Taco’s new VR series high-efficiency ECM cast-iron or stainless steel circulators offer a wide range of low-, medium- or high-head options in sizes from 1/3 to 2 HP. Easy, intuitive settings and operation will appeal to installers for a broad range of uses, including HVAC, hot water recirculation and NSF commercial hot applications, Taco notes. 00e VR circulators provide an easy-to-provide pump interface with real-time feedback.