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] 18" Round Duct Pipe Installing the plaster frame is

Installing the plaster frame is effortless – secure it into your sheetrock

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+ Product Details Size - 8"w X 30"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 24" x 34" OR 34" x 24" duct opening (measured at the opening)

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] 18" Round Duct Pipe Installing the plaster frame is+ 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