16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 17.75"w x 17.75"h] Brown #hvac-product-accordion { border: 2px solid

#hvac-product-accordion { border: 2px solid #5296DD

[Outer Dimensions: 38

Easy Unrestricted Air Flow For Your HVAC System

75" Width X 27

+ Product Details Size - 6"w X 18"h X 2"d (for duct opening measurement only)

16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - White [Outer Dimensions 17.75"w x 17.75"h] Brown #hvac-product-accordion { border: 2px solid+ Product Details Size 16"w X 16"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 17. 75" Width X 17. 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