28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille Return + Product Details Operating Temperature

+ Product Details Operating Temperature From -40°F To +248°F [-40°C To +120°C]

+ Product Details Size – 24"w X 24"h

box or other attachments needed

75" width X 15

For 14" duct opening

28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille Return + Product Details Operating Temperature+ 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