10"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 13.75"h] fixed bar actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height -

actual front end outer dimensions are approximately 24 5/8" width X 30 5/8" height

+ Product Details Size – 36" x 36" is the size for the duct opening measurement only

And Meets/Beats ASTM B280 Standard

Why HVAC Premium

10"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 13.75"h] fixed bar actual front end outer dimensions+ Product Details Size 10"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 13. 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