14"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 35.75"h] Color_R-4.2 Yellow + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246

+ Product Details Size – 30"w X 6"h is the size for the duct opening measurement only

screws same color as vent cover

+ Product Details Perfect Fit & Easy Sizing - Designed for a 36" x 14" OR 14" x 36" duct opening (measured at the opening)

+ Product Details Size - 12"w X 28"h X 2"d (for duct opening measurement only)

featuring a 6" round duct opening

14"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 15.75"w x 35.75"h] Color_R 4.2 Yellow + Product Details Size – Compatible with Duct 4" Product Details Size 32 LO246 + Product Details Size – 30"w X 6"h is the size for the duct opening measurement only screws same color as vent cover