The F40000 series provides installation flexibility with 4-way convertibility to fit virtually all applications. The hood is designed for under cabinet use and installs as 3-1/4 x 10 in ducted opening with vertical or horizontal ducting, or 7 in round vertical ducting or as non-ducted with air recirculation. The hood 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.Provides installation flexibility with four-way convertibility to fit virtually all applicationsSimple to use rocker switches let you adjust the fan speed and the light setting separatelyTwo fan speeds help you tackle a variety of venting jobs160 to 190 cfm blower helps quickly remove smoke and other cooking odors from the airVertical and horizontal exhaust option lets you connect the ductwork to the top or rear of the range hoodRemovable, reusable, dishwasher safe aluminum mesh filter for easy cleaning and maintenance, supports ductless filtration via non-ducted filterUses up to a 75 W in incandescent light to brightly illuminate the cooking areaEnclosed light and fan/filter assemblies, mitered corners and hemmed edges for good looks and easy cleaning