12"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 5.25"H] 8" Round Duct Pipe Operating temperature from -40°f to

Operating temperature from -40°f to +248°f [-40°c to +120°c]

making it an essential gear for your toolkit

Heavy Gauge Steel – Heavier gauge than needed

Made in the USA

Installation Steps

12"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 5.25"H] 8" Round Duct Pipe Operating temperature from -40°f to+ Product Details Size 12"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 13. 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