36"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 7.25"H] tools + Product Details Size &

+ Product Details Size & Compatibility – The 7" stick-on Side take-off is compatible with duct 7"

+ Product Details Size - 12"w X 8"h is the size for the duct opening measurement only

For added protection

+ Product Details Size & Compatibility – The size of sheet metal pipe is 3" round x 48" long

36"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 7.25"H] tools + Product Details Size &+ Product Details Size 36"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 37. 25" Width X 7. 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