8"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 17.75"h] steel Customize effortlessly with a removable

Customize effortlessly with a removable face/door

actual front end outer dimensions are approximately 16 5/8" width X 32 5/8" height

+ Product Details Size – 28"w X 30"h is the size for the duct opening measurement only

These are specially sized to fit into all drop ceilings

Achieve the perfect airflow with adjustable control by rotating the middle disk

8"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 17.75"h] steel Customize effortlessly with a removable+ Product Details Size 8"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 75" Width X 17. 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 wear