36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 37.75"w x 37.75"h] Color_Black High Quality – Solid stamped

High Quality – Solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

+ Product Details Size – 25"w X 16"h is the size for the duct opening measurement only

Ideal for Walls & Ceilings: Designed for seamless installation in standard 24" X 8" duct openings

+ Product Details Size – 6" x 24" or 24" x 6" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 20" Or 20" x 34" duct opening (measured at the opening)

36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 37.75"w x 37.75"h] Color_Black High Quality – Solid stamped+ Product Details Size 36"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 37. 75" Height Weather and Pest Proof These louvers are especially designed to prevent water from entering your home, and with a built in back 1 2" mesh they also protect you from annoying rodents like mice, rats, birds, and squirrels High Quality Aluminum The premium durable aluminum will never rust and it will never