22"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 35.75"h] w28h28 + Product Details Size –

+ Product Details Size – 10" x 18" or 18" x 10" is the size for the duct opening measurement only

+ Product Details Size - 36"w X 24"h is the size for the duct opening measurement only

with no sharp edges

+ Product Details Size – 30"w X 24"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 12" duct openings

22"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 23.75"w x 35.75"h] w28h28 + Product Details Size –+ Product Details Size 22"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 23. 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