14"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 37.75"h] 8" Round Duct Pipe accordion-title:hover { background-color: #f0f0f0

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+ Product Details Heavy-Duty Steel Construction - Made from 20-gauge steel for superior strength and durability

+ Product Details Size – 12" x 24" or 24" x 12" is the size for the duct opening measurement only

much more than required 700 PSI for R410

+ Product Details Size – 32"w X 25"h is the size for the duct opening measurement only

14"w X 36"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 37.75"h] 8" Round Duct Pipe accordion-title:hover { background-color: #f0f0f0+ Product Details Size 14"w X 36"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 15. 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