Self-contained, electric refrigerated, floor model water cooler. Capacity of 50 deg F drinking water, based upon 80 deg F inlet water. Non-pressurized tank system is standard.Non-pressurized water tank is located after bubbler valve, so that tank is subject to line pressure only when valve button is pressed. Unit shall be lead free design which iscertified to NSF/ANSI 61 and 372 and meets Federal and State low-lead requirements.