This is a certified used Manitowoc 540 lbs Water Cooled Ice Machine, model QD0603W. This unit was rebuilt and magnificent. It is in great physical and operation condition and ready to make ice as soon as it is wired into its new location. This unit has been through our rigorous testing and is working perfectly. It makes cube ice and is water cooled making it desirebale for many conditions. A water cooled machine does not need to be vented and does not throw off any heated air. It is ideally suitied for very hot environments, a basement or closet. What is best is that since it is water cooled, it will give you the maximum production listed since it is not affected by the outside temperature.