6"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 15.75"h] Round Damper Ring Rigid Built For External Use– 4 X 12 Is CRFG2028 Width_14in

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

+ Product Details Size – 12"w X 12"h

Upgrade to a new standard of air quality and aesthetics with our Aluminum Ceiling Diffuser

actual front end outer dimensions are approximately 22 5/8" width X 38 5/8" height

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 6" duct openings

6"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 7.75"w x 15.75"h] Round Damper Ring Rigid Built For External Use– 4 X 12 Is CRFG2028 Width_14in Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers + Product Details Size – 12"w X 12"h