Variable speed for more venitlation options, Additional sizes can be specially ordered (minimums apply), Use for recirculating operation, Stainless steel and white range hoods also available in this size and series, Switchable light offers more convenience in your kitchen, Designed to match 20 inch ranges; also available in 24, 30, and 36 inch widths, Provides thorough filtering to reduce odors, Solidly constructed for years of use