20"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 5.25"H] Round Duct Pipe width: 22px

width: 22px

Rigid Steel Construction: Built with strong and sturdy steel

+ Product Details Size – 24" Wooden Corner Baseboard Grille

+ Product Details Perfect Fit & Easy Sizing - Designed for a 32" x 28" OR 28" x 32" duct opening (measured at the opening)

Actual Filter Size – 7 3/4"w x 31 3/4" x 1"

20"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 21.25"W x 5.25"H] Round Duct Pipe width: 22px+ Product Details Size 20"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 21. 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