10" x 28" or 28" x 10" Cube Core Eggcrate Return Air Grille White Universal Fit – Measures 3-7/8"

Universal Fit – Measures 3-7/8" wide x 3-1/2" high x 3" deep

+ Product Description Maximize your home’s airflow with this premium 2-way air supply grille

+ Product Details Size – 18" x 32" or 32" x 18" is the size for the duct opening measurement only

With easy installation

+ Product Details Size - 10"w X 22"h is the size for the duct opening measurement only

10" x 28" or 28" x 10" Cube Core Eggcrate Return Air Grille White Universal Fit – Measures 3-7/8"+ Product Details Size 10" x 28" or 28" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" X 29. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing