26"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 29.75"h] 6" Round Duct Pipe these heavy-duty louvers are ideal

these heavy-duty louvers are ideal for use in attics

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(Screws included)

actual front end outer dimensions are approximately 26

26"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 29.75"h] 6" Round Duct Pipe these heavy-duty louvers are ideal+ Product Details Size 26"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 29. 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