16" x 36" or 36" x 16" Cube Core Eggcrate Return Air Grille Powder-Coated 75" width X 5

75" width X 5

Two Mounting Base Options – Includes both a solid base and a ring base

+ Product Details Size – 16"w X 34"h is the size for the duct opening measurement only

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When you're ready for a decor upgrade

16" x 36" or 36" x 16" Cube Core Eggcrate Return Air Grille Powder-Coated 75" width X 5+ Product Details Size 16" x 36" or 36" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 37. 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