8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - Black [Outer Dimensions 9.75"w x 9.75"h] Width_20in + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in
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Description
8"w X 8"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh Black [Outer Dimensions 9.75"w x 9.75"h] Width_20in + Product Details Perfect Fit 4 X 12 Is CRFG2028 Width_14in + Product Details Perfect Fit & Easy Sizing Designed for a 26" x 6" OR 6" x 26" duct opening (measured at the opening) you have 16 different varieties to choose from