8"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 9.25"W x 7.25"H] 14" Diameter + Product Details Size -

+ Product Details Size - 6"w X 6"h X 2"d (for duct opening measurement only)

+ Product Details Size – Size - 36mm

Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 10" duct openings

actual front end outer dimensions are approximately 34 5/8" width X 30 5/8" height

8"W X 6"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 9.25"W x 7.25"H] 14" Diameter + Product Details Size -+ Product Details Size 8"W X 6"H is (for duct opening measurement only); actual front end outer dimensions are 9. 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