12" x 12" Cube Core Eggcrate Return Air Grille w6h6 actual front end outer dimensions

actual front end outer dimensions are approximately 11

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3 * Insulation density is 30kgs/CBM = 0

and waste gases transmission lines

12" x 12" Cube Core Eggcrate Return Air Grille w6h6 actual front end outer dimensions+ Product Details Size 12" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 13. 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 electric