32"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 15.75"h] return grille + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 16" OR 16" X 18" duct opening (measured at the opening)

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

Ideal for Walls & Ceilings: Designed for seamless installation in standard 16" X 16" duct openings

Tamper-Proof Locking Mechanism – Includes an eight-tumbler lock with a supplied key to prevent unauthorized access

+ Product Details Size – 28"w X 6"h is the size for the duct opening measurement only

32"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 15.75"h] return grille + Product Details Perfect Fit+ Product Details Size 32"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 15. 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