32"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 21.75"h] Grilles 9% Pure Copper meeting ASTM

9% Pure Copper meeting ASTM B280 standards

+ Product Details Size – 25"w X 24"h is the size for the duct opening measurement only

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

75" Width X 27

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

32"w X 20"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 21.75"h] Grilles 9% Pure Copper meeting ASTM+ Product Details Size 32"w X 20"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 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