24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Brown [Outer Dimensions 25.75"w x 37.75"h] White actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

actual front end outer dimensions are approximately 10 5/8" width X 30 5/8" height

+ Product Details Size – 32"w X 20"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

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actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

24"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Brown [Outer Dimensions 25.75"w x 37.75"h] White actual front end outer dimensions Compatible With Duct 7in Applications This sheet metal DDAG A 1212 actual front end outer dimensions are approximately 10 5 8" width X 30 5 8" height + Product Details Size – 32"w X 20"h is the size for the duct opening measurement only