12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Grille Copper Coil Operating temperature from -40°f to

Operating temperature from -40°f to +248°f [-40°c to +120°c]

+ Product Details Size – 16"w X 6"h is the size for the duct opening measurement only

no questions asked

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+ Product Details Size - 30"w X 10"h is the size for the duct opening measurement only

12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Grille Copper Coil Operating temperature from -40°f to+ 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