12"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 31.75"h] 6" Round Duct Pipe actual front end outer dimensions

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

actual front end outer dimensions are 19" Width X 11" Height

no sharp edges

accordion-content { display: block

actual front end outer dimensions are approximately 26 5/8" width X 28 5/8" height

12"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 31.75"h] 6" Round Duct Pipe actual front end outer dimensions+ Product Details Size 12"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 31. 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