16"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 11.75"h] 14in diameter Design – Designed to withstand Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

Design – Designed to withstand bends and sharp turns without kinking

+ Product Details Size - 25"w X 32"h is the size for the duct opening measurement only

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reduces energy costs

+ Product Details Size – 16"w X 16"h is the size for the duct opening measurement only

16"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 17.75"w x 11.75"h] 14in diameter Design – Designed to withstand Compatible With Duct 7in Applications This sheet metal DDAG A 1212 Design – Designed to withstand bends and sharp turns without kinking + Product Details Size 25"w X 32"h is the size for the duct opening measurement only