30"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 7.75"h] RV Mobile Home + Product Details Size -

+ Product Details Size - 4"w X 32"h is the size for the duct opening measurement only

+ Product Details Size – 30"w X 20"h is the size for the duct opening measurement only

width: 100%

+ Product Details Size - 28"w X 12"h is the size for the duct opening measurement only

Featuring a multi-shutter damper with an easy-access lever

30"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 7.75"h] RV Mobile Home + Product Details Size -+ Product Details Size 30"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 7. 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 wear