Cool Boss CB-16 Optional Flexible Ducting Kit, exclusively for Cool Boss Evaporative Air Cooler : CB-16CB 16 Ducting Kit Optional Flexible Ducting Kit, exclusively for Cool Boss Evaporative Air Cooler : CB 16 With the Cool Boss Ducting Kit, you can now direct cool air precisely where you need it most. This kit includes a flexible, reinforced polyvinyl duct and a strap as well as a buckle for attaching. It's easy to install and simple to use. This ducting kit is constructed from sturdy materials and is sure to get the job done. NOTE: The Ducting Kit can