6"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 29.75"h] Compatible with Duct 10" much more than the required

much more than the required 700 psi for r410

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+ Product Details Size – 28"w X 28"h is the size for the duct opening measurement only

+ Product Details Size – 10"w X 20"h is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 8" x 18" or 18" x 8" duct opening (measured at the opening)

6"w X 28"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 7.75"w x 29.75"h] Compatible with Duct 10" much more than the required+ Product Details Size 6"w X 28"h X 2"d (for duct opening measurement only); actual front end outer dimensions are 7. 75" Width X 29. 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 wear