WATER DEFROSTING AIR COOLER DS SERIES 220V This ceiling air cooler is freon refrigerating nuits,can be used for the food fresh,cokd storage and quick freezing ... 2.5,positioned in equilatral triangle.2.Extermal rotor fan for low temperature,with low noise,hith effciency,and reliablitity.3.Shell ... 0,6.0,8.5,10.0 for customer's choice to meet different temperature requirement of the room.5.Stainless steel ...