36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Powder-Coated + Product Details Size -

+ Product Details Size - 28"w X 16"h is the size for the duct opening measurement only

The lightweight yet rigid construction ensures durability without sacrificing ease of handling

Say goodbye to air leakage and enjoy an energy-efficient HVAC system

installation kit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 22" x 24" OR 24" x 22" duct opening (measured at the opening)

36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Powder-Coated + Product Details Size -+ Product Details Size 36"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 37. 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