28"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 29.25"W x 5.25"H] 4" Diameter box or other attachments needed

box or other attachments needed

making repairs and maintenance a breeze

Crafted from 600D polyester

installation is a breeze

offering a shiny

28"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 29.25"W x 5.25"H] 4" Diameter box or other attachments needed+ Product Details Size 28"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 29. 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