34"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 11.75"h] 10in diameter 75"H – fits a 20"

75"H – fits a 20" X 12" duct opening

simply pop the diffuser into the wall duct hole and let the side springs hold it securely in place

Filter Grille features a user-friendly plastic latch that requires no screwdriver for opening

making installation a breeze

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34"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 35.75"w x 11.75"h] 10in diameter 75"H – fits a 20"+ Product Details Size 34"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 35. 75" Width X 11. 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