10"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 33.75"h] 6" Diameter Round-neck-to-square-face construction results in 360

Round-neck-to-square-face construction results in 360 degree air diffusion pattern similar to a full round diffuser

+ Product Details Size - 14"w X 30"h is the size for the duct opening measurement only

+ Product Details Size – 18"w X 14"h is the size for the duct opening measurement only

Actual Filter Size – 15 3/4"w x 7 3/4" x 1"

10"w X 32"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 33.75"h] 6" Diameter Round-neck-to-square-face construction results in 360+ Product Details Size 10"w X 32"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 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