6" x 22" or 22" x 6" Cube Core Eggcrate Return Air Grille RG66 Black-HP actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 8 5/8" height

+ Product Details Size – 12"w X 4"h is the size for the duct opening measurement only

actual front end outer dimensions are 13

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6" x 22" or 22" x 6" Cube Core Eggcrate Return Air Grille RG66 Black-HP actual front end outer dimensions+ Product Details Size 6" x 22" or 22" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 23. 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