32"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 33.25"W x 5.25"H] Brazing Solder Rods + Product Details Size -

+ Product Details Size - 25"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 28" x 30 or 30" x 28" is the size for the duct opening measurement only

+ Product Details Size & Compatibility – The size of the wall angle register boot is 12" X 3

+ Product Details Includes 28 Rods

32"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 33.25"W x 5.25"H] Brazing Solder Rods + Product Details Size -+ Product Details Size 32"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 33. 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