12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Grille w16h16 + Product Details Size –

+ Product Details Size – 24"w X 24"h

High Quality – Solid stamped steel with counter-sunk screw holes (screws included) and no sharp edges

actual front end outer dimensions are 22" width X 6" height

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Actual Filter Size – 11 3/4"w x 5 3/4" x 1"

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Grille w16h16 + Product Details Size –+ Product Details Size 12" x 32" or 32" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 33. 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