12"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 5.25"H] Filter Grille providing maximum flexibility

providing maximum flexibility

+ Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only

+ Product Details Size & Compatibilty - The 8" to 4" round metal pipe reducer & increaser 30 gauge is compatible with duct 8" to 4"

with an elegant

Smooth Powder Coat Finish: The grill boasts a sleek and smooth powder coat finish that not only adds a touch of elegance to your surroundings but also enhances its resistance against wear and tear

12"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 5.25"H] Filter Grille providing maximum flexibility+ 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