8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille steel } function toggleAccordion(event) { event

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+ Product Details Size - 30"w X 2"h is the size for the duct opening measurement only

8" x 30" or 30" x 8" Cube Core Eggcrate Return Air Grille steel } function toggleAccordion(event) { event+ Product Details Size 8" x 30" or 30" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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