AM55-FVL Variable Speed is an energy-efficient pump that uses only 38 watts. It offers three fixed speeds, four variable speeds with a single control button. A night, setback responds to the lower boiler temperature. Equipped with a 10 foot-line cord with watertight connector and four bolt flange pattern, it replaces three speed or variable speed pumps with one SKU. US built, 100 percent tested in Warwick Rhode Island. AquaMotion Inc. www.aquamotionhvac.com