20"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace - Weather-Resistant Air Grille with Screen Mesh - [Outer Dimensions 21.75"w x 35.75"h] White Experience the difference in quality 4" Round Duct Pipe Product Details Size The SHEASC10W1-HP

Experience the difference in quality with our sleek design and hassle-free functionality

actual front end outer dimensions are approximately 28 5/8" width X 36 5/8" height

+ Product Details Size – 14" x 18" or 18" x 14" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 34 5/8" height

Premium Plated Finish and Modern Contempo Design Forming a Luxurious Piece

20"w X 34"h Aluminum Exterior Gable Louver Vent for Walls & Crawlspace Weather Resistant Air Grille with Screen Mesh [Outer Dimensions 21.75"w x 35.75"h] White Experience the difference in quality 4" Round Duct Pipe Product Details Size The SHEASC10W1 HP Experience the difference in quality with our sleek design and hassle free functionality actual front end outer dimensions are approximately 28 5 8" width X 36 5 8" height