28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille Return it effectively prevents unauthorized access

it effectively prevents unauthorized access

+ Product Details Size – 24"w X 24"h

[Outer Dimensions: 18

Installation Location – Suitable for both sidewall and ceiling installation

75" width X 15

28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille Return it effectively prevents unauthorized access+ Product Details Size 28" x 32" or 32" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 33. 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