44"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 45.25"W x 7.25"H] 3" Round Duct Pipe + Product Details Size -

+ Product Details Size - 16"w X 34"h is the size for the duct opening measurement only

The grille is specifically engineered for concealed

+ Product Details Size - 16"w X 20"h X 2"d (for duct opening measurement only)

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44"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 45.25"W x 7.25"H] 3" Round Duct Pipe + Product Details Size -+ Product Details Size 44"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 45. 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