32"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 29.75"h] Powder-Coat + Product Details Size -

+ Product Details Size - 34"w X 36"h is the size for the duct opening measurement only

The integral design allows you to easily adjust the curved blades

+ Product Details Perfect Fit & Easy Sizing - Designed for a 6" x 36" or 36" x 6" duct opening (measured at the opening)

Its professional design and solid construction make it the perfect solution for safeguarding your thermostat against unwanted access

The 1/2" white insulation

32"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 33.75"w x 29.75"h] Powder-Coat + Product Details Size -+ Product Details Size 32"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 33. 75" Width X 29. 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