The 006e3 from Taco Comfort Solutions is a high-efficiency, ECM-powered circulator. The infinitely variable, wet-rotor circulator is designed to make installation and operation of domestic hot-water recirculation systems easier and more efficient. It has a dial to select from three performance curves to best match the application and a setting selection guide to make the choice simple. The whisper-quiet, permanent-magnet ECM motor uses up to 85 percent less electricity than conventional pumps of the same size. Whether used in a new construction hot-water recirculation system with dedicated return lines or in a retrofit application where water is returned via the cold waterline, installation is easy. The pump’s compact design is ideal for tight spaces, and multiple connection options are available. The circulator is double-insulated so that a ground wire is not necessary, and a three-color LED indicates status. SureStart technology automatically unblocks and purges air from the line. 401-942-8000; www.tacocomfort.com.