26"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 33.75"h] Compatible with Duct 10" Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 6" X 4" duct openings

+ Product Details Size – 22"w X 22"h is the size for the duct opening measurement only

Measuring 5" in diameter for the duct opening

actual front end outer dimensions are approximately 16 5/8" width X 38 5/8" height

The permanently attached eight-tumbler lock with a supplied key adds an extra layer of security

26"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 27.75"w x 33.75"h] Compatible with Duct 10" Ideal for Walls & Ceilings:+ Product Details Size 26"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 27. 75" Width X 33. 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