10"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 35.75"h] Fixed Blades with Damper accordion-content { display: block

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+ Product Details Size – 12" x 16" or 16" x 12" is the size for the duct opening measurement only

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

How to Measure Your Vent Hole Before Ordering a Grille

10"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 35.75"h] Fixed Blades with Damper accordion-content { display: block+ Product Details Size 10"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 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