32"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 11.75"h] 2-Way + Product Details Size –

+ Product Details Size – 36"w X 12"h is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 31 3/4" x 1"

Design – Unrestricted airflow for your HVAC system - adjustable one-way louver with full horizontal airflow directional control - single deflection supply grill with 96% airflow - noise free components - no vibrating louvers etc

actual front end outer dimensions are approximately 12 5/8" width X 28 5/8" height

32"w X 10"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 11.75"h] 2-Way + Product Details Size –+ Product Details Size 32"w X 10"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 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