26"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 35.75"h] Powder Coated + Product Details Size -

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

but you will appreciate the benefits over the period of time

so you are not left with much waste

+ Product Details Size - 32"w X 6"h is the size for the duct opening measurement only

26"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 35.75"h] Powder Coated + Product Details Size -+ Product Details Size 26"w X 34"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 35. 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