24" x 24" Cube Core Eggcrate Return Air Grille Aluminum Bar + Product Details Size -

+ Product Details Size - 28"w X 14"h is the size for the duct opening measurement only

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+ Product Details Size - 22"w X 14"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 10"h is the size for the duct opening measurement only

24" x 24" Cube Core Eggcrate Return Air Grille Aluminum Bar + Product Details Size -+ Product Details Size 24" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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 electric