40"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 9.25"H] w24h24 + Product Details Size -

+ Product Details Size - 28"W X 6"H is (for duct opening measurement only)

providing a reliable connection for 5" round ducts

this stick-on collar with damper efficiently facilitates the delivery and removal of air

offering maximum flexibility

+ Product Details Size - 14"w X 28"h X 2"d (for duct opening measurement only)

40"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 41.25"W x 9.25"H] w24h24 + Product Details Size -+ Product Details Size 40"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 41. 25" Width X 9. 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