10" x 24" or 24" x 10" Cube Core Eggcrate Return Air Grille Copper Coil Key Features:

Key Features:

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Example: If your hole is 20" wide by 14" tall

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

10" x 24" or 24" x 10" Cube Core Eggcrate Return Air Grille Copper Coil Key Features:+ 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