10" x 24" or 24" x 10" Cube Core Eggcrate Return Air Grille Aluminum line-height: 22px

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+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

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10" x 24" or 24" x 10" Cube Core Eggcrate Return Air Grille Aluminum line-height: 22px+ Product Details Size 10" x 24" or 24" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" X 25. 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