6"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 35.75"h] Aluminum - Cube Core actual front end outer dimensions Product Details Size 14 Material_Anodized Aluminum LR164

actual front end outer dimensions are approximately 27 5/8" width X 24 5/8" height

+ Product Details Size - 12"w X 30"h is the size for the duct opening measurement only

making installation a breeze

+ Product Details Size - 14"w X 28"h X 2"d (for duct opening measurement only)

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6"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 7.75"w x 35.75"h] Aluminum Cube Core actual front end outer dimensions Product Details Size 14 Material_Anodized Aluminum LR164 actual front end outer dimensions are approximately 27 5 8" width X 24 5 8" height + Product Details Size 12"w X 30"h is the size for the duct opening measurement only