36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 37.75"w x 37.75"h] Compatible with Duct 6" Filter Size - 15

Filter Size - 15

order a 14x20 grille

+ Product Details Size - 30"w X 36"h is the size for the duct opening measurement only

85" width X 9

Actual Front End Outer Dimensions Are 16" Width X 5" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

36"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 37.75"w x 37.75"h] Compatible with Duct 6" Filter Size - 15+ Product Details Size 36"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 37. 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