12"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 35.75"h] Powder-Coated + Product Details Size –

+ Product Details Size – 28"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32

75" Width X 5

+ Product Description Enhance your HVAC system's efficiency and your home's aesthetics with our premium aluminum air vent diffuser

+ Product Details Size - 14"w X 18"h is the size for the duct opening measurement only

12"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 35.75"h] Powder-Coated + Product Details Size –+ Product Details Size 12"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 35. 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