24"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 31.75"h] w20h20 Actual Front End Outer Dimensions

Actual Front End Outer Dimensions Are 42" Width X 18" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Ideal for Walls & Ceilings: Designed for seamless installation in standard 30" X 6" duct openings

Can be hooked up with our "Butterfly Dampers" for precise airflow control

Air Flow – Ensure a quiet and smooth HVAC system with noise-free components

+ Product Details Size - 8"w X 16"h X 2"d (for duct opening measurement only)

24"w X 30"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 31.75"h] w20h20 Actual Front End Outer Dimensions+ Product Details Size 24"w X 30"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 31. 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