12"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 33.75"h] w16h16 Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 4" duct openings

+ Product Details Size – 26" x 34" or 34" x 26" is the size for the duct opening measurement only

+ Product Details Size – 14"w X 10"h is the size for the duct opening measurement only

+ Product Description When it's time to upgrade your HVAC Vents in your house

12"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 33.75"h] w16h16 Ideal for Walls & Ceilings:+ Product Details Size 12"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 33. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never