28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille 12in diameter + Product Details Size -

+ Product Details Size - 12"w X 24"h X 2"d (for duct opening measurement only)

+ Product Details Size - 16"w X 32"h is the size for the duct opening measurement only

75" width X 33

actual front end outer dimensions are approximately 27 5/8" width X 36 5/8" height

flex-shrink: 0

28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille 12in diameter + Product Details Size -+ 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