The Avalon Electric Countertop 3 Temperature Bottleless Water Cooler is made with an innovative design. It offers a choice of 3 water temperatures to choose from. The easy-to-use electronic buttons make it so much more convenient to use. Simply press the button of choice and allow the water to flow from the spout. The machine's highly efficient compressor makes the cold water crisp and ice cold at approximately 47° F without the need of adding ice cubes to your drink. The hot faucet is hot enough to cook one's tea or coffee or any other steaming hot beverage at approximately 185° F. The tanks hold 1 liter of hot water and 3.6 liters of cold water. There is a built-in nightlight making the water spout clearly visible in the dark. The dispensing area is 12x3.25x8.75 inches with 7.5 inches of space below the spout. This will accommodate most large cups or bottles. This water cooler is bottle-less with an NSF certified activated carbon filter (listed as model Avalon A4FILTER) and a sediment filter (listed as model Avalon A5FILTER) along with a water line that can be attached to your water source. The water is taken from your water source and filtered through the filters and then through the machine's hot and cold water tanks. The filters will purify the tap water eliminating any chlorine, lead, rust, and bacteria. There is also a built-in leak detector to automatically monitor the water flow from the water source into the machine. We have also incorporated a self-clean ozone function which will automatically clean the machine's water tank with the injection of ozone by the press of a switch. The water cooler is UL listed and complies with all standards of Energy Star. Setup is easy and the unit can be connected directly to your existing sink water line. All parts necessary for installation are included. The adapter to connect our water cooler tubing to an existing line is 3/8" which will fit most standard water supply lines. The dimensions are 13x12x19 inches