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 /* increased padding */ border-radius:

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Universal Fit – Measures 3-7/8" wide x 3-1/2" high x 3" deep

our damper helps create a well-balanced indoor environment

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

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 /* increased padding */ border-radius:+ 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