Skuttle 55UD Under Duct Flow Thru Humidifier.

Whole house humidifier, manufactured by Skuttle Corp. This model was designed with ease of service in mind. Installed under the supply or return horizontal duct of a forced air furnace, this model utilizes air flowing through the duct system to pick up moisture. Can be mounted on duct as small as 12 wide x 8 high. The flow through design constantly flushes away trouble causing minerals not deposited on the replaceable water panel and provides exactly the right amount of moisture in vapor form.