16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 17.75"h] w24h24 this guard ensures long-lasting protection

this guard ensures long-lasting protection and security

Matching OBD dampers

please note that the total outer dimensions of the grille measure 8" in diameter

actual front end outer dimensions are approximately 27 5/8" width X 12 5/8" height

Powder-coat finish

16"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 17.75"w x 17.75"h] w24h24 this guard ensures long-lasting protection+ 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