24"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 19.75"h] Compatible With Duct 12in align-items: center

align-items: center

40" x 16" Aluminum Spiral Duct Air Vent Grille Cover - Fully Adjustable Double Deflection HVAC Air Supply

+ Product Details Size - 28"w X 30"h is the size for the duct opening measurement only

+ Product Details Size - 36"w X 32"h is the size for the duct opening measurement only

5" - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

24"w X 18"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 19.75"h] Compatible With Duct 12in align-items: center+ Product Details Size 24"w X 18"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 19. 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