12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Grille w8h8 textContent = '-'

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+ Product Details Size - 20"w X 20"h is the size for the duct opening measurement only

Width vs Height:

and matte black

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

12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Grille w8h8 textContent = '-'+ Product Details Size 12" x 30" or 30" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 31. 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