30"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 37.75"h] return grille + Product Description Introducing the

+ Product Description Introducing the 6" Butterfly Damper – Your Solution for Controlled Airflow

height: 22px

+ Product Details Size – 14" X 4" is the size for the duct opening (floor/vent hole) measurement only

+ Product Description Check out one of our most attractive and stylish grills

30"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 37.75"h] return grille + Product Description Introducing the+ Product Details Size 30"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 37. 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