26"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 17.75"h] Width_20in actual front end outer dimensions

actual front end outer dimensions are approximately 27 5/8" width X 14 5/8" height

+ Product Details Size – 20"w X 4"h is the size for the duct opening measurement only

these louvers are built to last

Carefully Shrink Wrapped – With cardboard backing to prevent damage in shipment

+ Product Details Size – 6" x 16" or 16" x 6" is the size for the duct opening measurement only

26"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 17.75"h] Width_20in actual front end outer dimensions+ Product Details Size 26"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 17. 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