12"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 15.75"h] w18h18 + Product Details Size -

+ Product Details Size - The listed 10" diameter refers specifically to the size of the duct opening

ceiling height)

+ Product Details Size – 14"w X 34"h is the size for the duct opening measurement only

Whilst the maximum pressure for R410 is 700 PSI

+ Product Details Size – 12" x 26" or 26" x 12" is the size for the duct opening measurement only

12"w X 14"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 13.75"w x 15.75"h] w18h18 + Product Details Size -+ Product Details Size 12"w X 14"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 13. 75" Width X 15. 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