24"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 7.75"h] Grille Airflow – Improved airflow dynamics

Airflow – Improved airflow dynamics long neck bBody- reduced noise design - integrated spring fasteners

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 10" or 10" x 12" duct opening (measured at the opening)

actual front end outer dimensions are approximately 10 5/8" width X 16 5/8" height

Easy removal for cleaning

24"w X 6"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 25.75"w x 7.75"h] Grille Airflow – Improved airflow dynamics+ Product Details Size 24"w X 6"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 25. 75" Width X 7. 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