Dimensions: 11W x 9.25D x 20.25-38.5H inchesDuct cover adapter for taller ceilings. Intended for use with Windster series RA-34L models. For ceilings between 8- and 9-feet tall. Constructed from sturdy solid stainless steel. The Windster RA-34L Series Duct Cover lets you adapt your Windster brand RA-34L model under-cabinet range hood for a traditional-style installation. This duct cover is intended for ceilings between 8- and 9-feet tall letting you mount the unit to the wall rather than under the cabinet. The duct cover perfectly matches your hood made from stainless steel and featuring a seamless design with smooth edges. The unit ensures the vent's intake is positioned at the ideal 28- to 32-inches above the cooking surface. The duct cover has been approved for use by the CSA for use in both US and Canadian homes.About Windster Hoods For over a decade Windster Hoods has provided North American consumers with superior-quality range hoods filters and other ventilation and kitchen equipment. Each unit produced by Windster Hood is designed to meet or exceed the standards defined by the CSA conforming to governmental and regulatory codes. Windster products are constructed with a focus on safety and functionality featuring smooth edges single-piece designs and precise welding. Since 2003 Windster has risen to become a trusted name and industry leader. Under-cabinet wall-mounted island units and more are all produced on-site and delivered directly to business owners from the Windster warehouses.