48"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 49.25"W x 5.25"H] w22h22 + Product Details Size –

+ Product Details Size – 16" x 32" or 32" x 16" is the size for the duct opening measurement only

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 8" or 8" x 12" duct opening (measured at the opening)

75" Width X 31

+ Product Details Size – 28" x 28" is the size for the duct opening measurement only

48"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 49.25"W x 5.25"H] w22h22 + Product Details Size –+ Product Details Size 48"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 49. 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