28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille w26h26 margin-right: 8px

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The total outer size of this grille is the listed size plus 3"

+ Product Details Size – 12" x 32" or 32" x 12" is the size for the duct opening measurement only

+ Product Details Size – 10" x 16" or 16" x 10" is the size for the duct opening measurement only

Made of high quality aluminum that will never rust

28" x 34" or 34" x 28" Cube Core Eggcrate Return Air Grille w26h26 margin-right: 8px+ Product Details Size 28" x 34" or 34" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 35. 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