Black Powder Coated Finish with Slope Nose Design 12 VOLT POWER ONLY - 110/115/220 volt such as in a house or generator will damage the unit REAR EXTERIOR DUCT STYLE Duct Hole Rough Overall Measurements 3 1/4 " x 9 1/2" Centered in back of range hood FRONT CONTROL PANEL with separate rocker switches to control 12 volt fan and 10 watt light OVERALL DIMENSIONS 20" wide x 18" deep x 5 1/4" tall SLOPE NOSE allows installation of this unit with cabinets from 12"-18" deep Remove and Clean Filter Often - To prevent fire clean grease laden areas often - Exercise care when using cleaning agents or detergents to not scratch finish of unit