30"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 37.75"h] w22h22 + Product Details Size –

+ Product Details Size – 25"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 36"w X 16"h X 2"d (for duct opening measurement only)

75"H – fits a 10" X 4" duct opening

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14" x 8" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

30"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 37.75"h] w22h22 + Product Details Size –+ Product Details Size 30"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 75" Width X 37. 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