24"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 9.75"h] w10h10 + Product Details Size - Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

+ Product Details Size - 8"w X 14"h X 2"d (for duct opening measurement only)

actual front end outer dimensions are approximately 32 5/8" width X 28 5/8" height

+ Product Details Size - 10"w X 20"h X 2"d (for duct opening measurement only)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 6" OR 6" x 36" duct opening (measured at the opening)

+ Product Details Size - 12"w X 20"h X 2"d (for duct opening measurement only)

24"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 25.75"w x 9.75"h] w10h10 + Product Details Size Compatible With Duct 7in Applications This sheet metal DDAG A 1212 + Product Details Size 8"w X 14"h X 2"d (for duct opening measurement only) actual front end outer dimensions are approximately 32 5 8" width X 28 5 8" height