24"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 25.25"W x 5.25"H] 25 Feet Long + Product Details Size &

+ Product Details Size & Compatibility – The 7" round quadrant volume damper is compatible with duct 7"

+ Product Details Perfect Fit & Easy Sizing - Designed for a 28" x 26" OR 26" x 28" duct opening (measured at the opening)

+ Product Details Size - 24"w X 30"h X 2"d (for duct opening measurement only)

SIZE & COMPATIBILITY - The size of the galvanized steel end cap is 10"

+ Product Details Size – 24"w X 10"h is the size for the duct opening measurement only

24"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 25.25"W x 5.25"H] 25 Feet Long + Product Details Size &+ Product Details Size 24"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 25. 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