30"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 25.75"h] 8" Diameter and a control lever designed

and a control lever designed for seamless operation

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

Installation of the vents will eliminate the need to raise the door ensuring security and constant air flow and reduced heat transfer into attics and adjacent house walls

transparent design and durable construction

+ Product Details Size - 22"w X 30"h is the size for the duct opening measurement only

30"w X 24"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 31.75"w x 25.75"h] 8" Diameter and a control lever designed+ Product Details Size 30"w X 24"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 31. 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