This range hood is specifically design for 7 in. round vertical duct attachment. The 420000 Series features a fan 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. The hood comes in a variety of appliance matching colors and widths. 420000 Series Features: Ducted Range Hood, 2-Speed Control, Under Cabinet Mounting Type, Installs as 7"" Round Ducted Only, 190 CFM Internal Blower, Dishwasher-Safe Aluminum Grease Filter, Accepts Up to 75 Watt Light, Built-in 7"" Adapter, Blower Air Mover Type Fan, HVI 2100 Certified, 3.2 Max Sones/100 CFM, 18"" Above Cook Top, Wall Mounting System, UL Listed for Safety"
I was worried that the quality was not going to be very good as the cost was very (very) reasonable, but as it turned out- it works absolutely perfectly, and looks really nice in stainless steel. You can put an energy-efficient bulb in it, and it gives off a tremendous amount of light, much better than the funky greasy nasty old range hood that I was using previously. This has proven to be the best value of any kitchen item I have, and..