6" x 12" or 12" x 6" Cube Core Eggcrate Return Air Grille Grille + Product Details Size –

+ Product Details Size – 24"w X 24"h is the size for the duct opening measurement only

Crafted with a solid steel body

With our extensive selection of Grilles

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

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6" x 12" or 12" x 6" Cube Core Eggcrate Return Air Grille Grille + Product Details Size –+ Product Details Size 6" x 12" or 12" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 8. 5" X 14. 5". 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