48"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 49.25"W x 7.25"H] Aluminum - Cube Core Perfectly suited for both residential

Perfectly suited for both residential and commercial use

+ What Is A MERV Rating Overall Size:

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 30" OR 30" x 20" duct opening (measured at the opening)

+ Product Details Size – 16" x 28" or 28" x 16" is the size for the duct opening measurement only

48"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 49.25"W x 7.25"H] Aluminum - Cube Core Perfectly suited for both residential+ Product Details Size 48"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 49. 25" Width X 7. 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