Powrmatic Vision H2OThe Powrmatic HO Vision model is water cooled air conditioning a highly efficient heat pump air conditioner with the ability to connect to any existing water supply within your room. The Vision H2O removes the need for an outdoor unit and external holes grilles saving you costs on installation and improving the aesthetic appearance of your building. The Vision H20 only requires its own cold water mains connection and a wastewater drain. Benefits: No