Santa Fe Compact 2 Duct Kit, Supply Only is a duct kit for the Compact 2 dehumidifier. Duct work is perfect if the dehumidifier needs to be hidden away from your basement, in a storage space, or any place in your house. It is also great if you need to dehumidify an area that is not accessible or have air pump from one room to another. Another option includes duct work in a crawl space to obtain air. This kit comes with the supply ring for the dehumidifier.