Ventline V2018-01 Exterior Vent for Ducted Range Hoods Exterior Vent for Ventline Ducted Range Hoods Louvered design 1.75 Inch inlet size; cutout: 10.5 Inch x 3.75 Inch ; overall: 12.13 Inch x 5.75 Inch Constructed of durable injection molded plastic Polar White