36"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 9.25"H] Filter Grille + Product Details Size -

+ Product Details Size - 24"W X 4"H is (for duct opening measurement only)

Crafted from high-quality galvanized steel

+ Product Details Size – 12" X 4" is the opening (vent hole) dimension - actual size is approx

+ Product Details Size & Compatibility – The 6" stick-on Side take-off is compatible with duct 6"

You’ll no longer have to worry about maintaining your line set

36"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 9.25"H] Filter Grille + Product Details Size -+ Product Details Size 36"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 37. 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