36"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 7.25"H] w22h22 There are many possible causes

There are many possible causes for these

With its fully removable feature and safety hook

Additionally

Crafted from durable galvanized steel metal to prevent rust and ensure long-lasting durability

these pipes offer easy handling

36"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 7.25"H] w22h22 There are many possible causes+ Product Details Size 36"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 37. 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