12" x 30" or 30" x 12" Cube Core Eggcrate Return Air Grille Copper Coil + Product Details Size -

+ Product Details Size - 10"w X 20"h is the size for the duct opening measurement only

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

These grilles and registers give you an extra measure of quality that are visible to your family members and house guests

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 Copper Coil + Product Details Size -+ 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