14"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 11.75"h] white while the ingenious dial-controlled damper

while the ingenious dial-controlled damper empowers you to effortlessly regulate airflow using your foot

please note that the total outer dimensions of the grille measure 14" in diameter

ensuring they don't overlap

+ Product Details Size – 18"w X 28"h is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 11 3/4" x 1"

14"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 11.75"h] white while the ingenious dial-controlled damper+ Product Details Size 14"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 75" Width X 11. 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