10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] Insulated Line Set Adjustable airflow control – Adjustable

Adjustable airflow control – Adjustable airflow control: The system allows users to customize the amount of air supply

Actual Filter Size – 33 3/4"w x 15 3/4" x 1"

actual front end outer dimensions are approximately 38 5/8" width X 12 5/8" height -

designed for both sidewall and ceiling installations

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 34" Or 34" x 32" duct opening (measured at the opening)

10"w X 26"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 11.75"w x 27.75"h] Insulated Line Set Adjustable airflow control – Adjustable+ Product Details Size 10"w X 26"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 11. 75" Width X 27. 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