16" x 16" Cube Core Eggcrate Return Air Grille Adjustable Return + Product Details Size –

+ Product Details Size – 10" X 4" is the size for the duct opening (floor/vent hole) measurement only

+ Product Details Size – 10" x 16" or 16" x 10" is the size for the duct opening measurement only

The premium plated finish and modern design make it a luxurious and impressive addition to your home decor

+ Product Details Size – 16" x 20" or 20" x 16" is the size for the duct opening measurement only

16" x 16" Cube Core Eggcrate Return Air Grille Adjustable Return + Product Details Size –+ Product Details Size 16" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 17. 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 electric