22" x 36" or 36" x 22" Cube Core Eggcrate Return Air Grille 1-Way actual front end outer dimensions

actual front end outer dimensions are approximately 22 5/8" width X 14 5/8" height

actual front end outer dimensions are 31

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Operating temperature from -40°f to +248°f [-40°c to +120°c]

22" x 36" or 36" x 22" Cube Core Eggcrate Return Air Grille 1-Way actual front end outer dimensions+ Product Details Size 22" x 36" or 36" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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