36"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 21.75"h] w28h28 + Product Details Size –

+ Product Details Size – 28"w X 8"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 38 5/8" width X 20 5/8" height -

ensuring optimal ventilation in your space

High Quality – Rigid aluminum construction with counter-sunk screw holes (screws included) and no sharp edges

actual front end outer dimensions are approximately 10 5/8" width X 8 5/8" height

36"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 21.75"h] w28h28 + Product Details Size –+ Product Details Size 36"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 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