Clover B7B Room Temperature and Cold Bottled Water Dispenser, Black STAINLESS STEEL TANKS: The cold water tank is constructed of hygienic stainless steel which is specifically designed to be contaminant-resistant and protect your health TEMPERATURE ADJUSTMENT: Controlled by an adjustable thermostat, the cold water temperature can be set from around 35.6F-53.6F. ENERGY STAR RATED: This water cooler has earned an Energy Star rating, which means it meets strict energy-efficiency guidelines set by the EPA and U.S. Department of Energy EASY CLEAN-UP: The Clover B7B water dispenser requires little maintenance, just remove the one piece ABS drip tray for occasional cleaning. EFFICIENT COOLING AND HEATING: This room temperature and cold water cooler has an ultra-efficient condenser that's cooled via convection and operates quietly.