Check the listing for details. Heng's J116AWH-C Bright White Exhaust Range Vent Cover RV, Trailer & Camper. Condition: New. Listed at 20.99 USD. Heng's Exhaust SystemThis unit consists of an attractive exterior vent cover designed to keep rain and dust out of your vehicle with an outside manual release damperOnce the outside manual release damper is unsecured, the damper automatically opens when the range hood fan is activated to allow cooking odors and smoke to be exhaustedThe damper automatically closes to prevent insects and dust from entering when the range hood is not in operationBright WhiteApprox: 13'' wide x 6'' high outside dimensions.The approx cut out measurements- 10-1/2'' wide x 3-1/2'' tall x 2'' deep. Heng's Exhaust System. This unit consists of an attractive exterior vent cover designed to keep rain and dust out of your vehicle with an outside manual release damper. Once the outside manual release damper is unsecured, the damper automatically opens when the range hood fan is activated to allow cooking odors and smoke to be exhausted. The damper automatically closes to prevent insects and dust from entering when the range hood is not in operation. The manual release damper must be secured before traveling. Dimensions: 4.62 Inch x10.88 Inch. Cutout: 4 Inch x 10.86 Inch. Bright White. BUYER PAYS NON-DEFECTIVE RETURNS. THERE WILL BE A 15% RESTOCKING FEE ON NON-DEFECTIVE RETURNS.