34"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 21.75"h] Powder-Coat actual front end outer dimensions

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height

For a visual guide on how to measure your vent hole before ordering a grille

These are built heavy duty for installation into brick and cement walls

our damper helps create a well-balanced indoor environment

75"H – fits a 8" X 8" duct opening

34"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 21.75"h] Powder-Coat actual front end outer dimensions+ Product Details Size 34"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 21. 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