36"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 9.25"H] with filter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 18" x 10" OR 10" X 18" duct opening (measured at the opening)

75"H – fits a 14" X 12" duct opening

Our manual adjuster/ damper quadrant is made of high-quality galvanized sheet metal with crimped ends (snap-lock design) for easy fitting and secure connection

Ideal for both walls and ceilings

2" X 10" Is The Size For The Duct Opening (floor/vent hole) Measurement Only

36"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 9.25"H] with filter + Product Details Perfect Fit+ Product Details Size 36"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 37. 25" Width X 9. 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