36"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 13.75"h] 14" Round Duct Pipe + Product Details Size -

+ Product Details Size - 12"w X 24"h X 2"d (for duct opening measurement only)

+ Product Description Upgrade your HVAC system with our 6" Round Air Vent Supply Grille

All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

designed for optimal airflow and efficiency

36"w X 12"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 13.75"h] 14" Round Duct Pipe + Product Details Size -+ Product Details Size 36"w X 12"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 13. 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