18" x 28" or 28" x 18" Cube Core Eggcrate Return Air Grille Material_Steel actual front end outer dimensions

actual front end outer dimensions are approximately 10 5/8" width X 10 5/8" height

Whether you choose the modern contemporary

+ Product Details Size – 32"w X 8"h is the size for the duct opening measurement only

but you will appreciate the benefits over the period of time

18" x 28" or 28" x 18" Cube Core Eggcrate Return Air Grille Material_Steel actual front end outer dimensions+ Product Details Size 18" x 28" or 28" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 29. 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