8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] Fixed Blades 75"H – fits a 16"

75"H – fits a 16" X 4" duct opening

14" Diameter Is The Size For The Duct Opening Measurement Only

Suitable for all AC applications

this 4-way air vent diffuser allows you to precisely control airflow

8"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 9.75"w x 11.75"h] Fixed Blades 75"H – fits a 16"+ Product Details Size 8"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 9. 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 wear