The Broan 40000 series is made for a wide range of installations and comes in a variety of appliance matching colors. The durable under cabinet hood installs as 3-1/4 in. x 10 in. ducted opening only and ducts either vertically or horizontally. The hood is equipped with a 210 MAX Blower CFM designed for years of trouble free service, an easy to clean grease filter, a protective lamp lens that distributes light evenly over the cook-top, and control switches for fan speed and light activation. Includes duct adapter with built-in damper.