40"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 5.25"H] Hi-Lo Oval Stack Head Beyond installation

Beyond installation

Our Galvanized Sheet Metal Duct Pipes are manufactured from high quality galvanized steel

made of 1/2" UV-resistant Polypropylene

+ Product Details Size – 12"w X 12"h

40"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 5.25"H] Hi-Lo Oval Stack Head Beyond installation+ Product Details Size 40"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 41. 25" Width X 5. 25" Height. Design Designed for concealed, flush placement on your wall with a 3 8 inch space between louvers, this linear grille comes with an installation frame and clips for easy hook in assembly, ensuring a refined and seamless look. High Quality Aluminum The premium durable aluminum will never rust and it will never