16"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 29.75"h] Black + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 16"w X 6"h X 2"d (for duct opening measurement only)

Assembeled Before Powder Coat Paint

+ Product Details Size – 26" x 26" is the size for the duct opening measurement only

+ Product Details Size - 36"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 16"w X 14"h is the size for the duct opening measurement only

16"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 17.75"w x 29.75"h] Black + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 16"w X 6"h X 2"d (for duct opening measurement only) Assembeled Before Powder Coat Paint