12" x 22" or 22" x 12" Cube Core Eggcrate Return Air Grille Color_Red Oak actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 18 5/8" height

+ Product Details Size – 20"w X 28"h is the size for the duct opening measurement only

Experience the difference in quality with our sleek design and hassle-free functionality

actual front end outer dimensions are approximately 22 5/8" width X 24 5/8" height

Airflow Control – Adjustable airflow lever allows precise control over the direction and volume of air

12" x 22" or 22" x 12" Cube Core Eggcrate Return Air Grille Color_Red Oak actual front end outer dimensions+ Product Details Size 12" x 22" or 22" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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