16"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 37.75"h] Powder Coated + Product Details Size -

+ Product Details Size - 6"w X 34"h X 2"d (for duct opening measurement only)

Aluminum Garage Door Air Vent Grille Register - With Damper Control Lever For Winter & Summer Settings - With Insect Net Prevent Guard [17

+ Product Details Size – 34"w X 14"h is the size for the duct opening measurement only

please note that the total outer dimensions of the grille measure 7" in diameter

16"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 37.75"h] Powder Coated + Product Details Size -+ Product Details Size 16"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 37. 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