14"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 15.75"w x 17.75"h] 10" Round Duct Pipe Scratch-Resistant Finish - The powder-coated 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

Scratch-Resistant Finish - The powder-coated surface offers a smooth

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 22" OR 22" x 18" duct opening (measured at the opening)

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14"w X 16"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 15.75"w x 17.75"h] 10" Round Duct Pipe Scratch Resistant Finish The powder coated 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP Scratch Resistant Finish The powder coated surface offers a smooth actual front end outer dimensions are approximately 22 5 8" width X 14 5 8" height