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

actual front end outer dimensions are approximately 32 5/8" width X 8 5/8" height -

+ Product Details Size - 30"w X 28"h is the size for the duct opening measurement only

The 1/2" black insulation

+ Product Details Size - 12"w X 32"h is the size for the duct opening measurement only

The powder-coated finish ensures a sleek look while protecting the grille from wear and tear

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