The Avalon Wall-Mounted Water Fountain with Bottle Filler is a high capacity cooling water fountain with a built-in bottle filler. Both the fountain and the bottle filler use touchless dispensing with mutiple infrared sensors keeping the unit touch-free. The bottle filler has a digital display showing how many bottles have been saved with this unit. There is a filter indictor letting you know when to change the filters. This water fountain 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 machines high effeciency cold water tank. The filters will purify the tap water eliminating any chlorine, lead, rust. The filters will last 6 months or 1500 gallons and can be easily changed via the side panel of the unit. 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 function which will automatically clean the water before exiting the spout. The water cooler is UL listed and is ADA compliant. The unit dimensions are 19x17.5x39 inches. The dispense area is 4x7x15 inches with 14 inches below the spout.