26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille w22h22 + Product Description Maximize your

+ Product Description Maximize your home’s airflow with this premium 2-way air supply grille

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+ Product Details Outer dimensions: 11

actual front end outer dimensions are approximately 32 5/8" width X 30 5/8" height

+ Product Details Size – 28" x 36" or 36" x 28" is the size for the duct opening measurement only

26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille w22h22 + Product Description Maximize your+ Product Details Size 26" x 36" or 36" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" X 37. 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