36"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 25.75"h] 12in diameter our Circular Air Supply Valves

our Circular Air Supply Valves are ideal for low and medium pressure ventilation air conditioning systems

actual front end outer dimensions are approximately 20 5/8" width X 36 5/8" height

+ Product Details Size – 34"w X 16"h is the size for the duct opening measurement only

+ Product Details Size - 34"w X 10"h is the size for the duct opening measurement only

Constructed from durable

36"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 37.75"w x 25.75"h] 12in diameter our Circular Air Supply Valves+ Product Details Size 36"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 37. 75" Width X 25. 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