10" x 16" or 16" x 10" Cube Core Eggcrate Return Air Grille Return Grille Conveniently taped together as a

Conveniently taped together as a single piece

+ Product Details Size - 12"w X 36"h is the size for the duct opening measurement only

Solid Rigid Steel Body For Durability and Reliability

rust-free aluminum construction with smooth finished edges and counter-sunk screw holes (screws included)

10" x 16" or 16" x 10" Cube Core Eggcrate Return Air Grille Return Grille Conveniently taped together as a+ Product Details Size 10" x 16" or 16" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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