28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille w32h32 actual front end outer dimensions

actual front end outer dimensions are approximately 33

Actual Filter Size – 13 3/4"w x 15 3/4" x 1"

Designed for optimum performance

+ Product Details Size - 28"w X 10"h is the size for the duct opening measurement only

28" x 32" or 32" x 28" Cube Core Eggcrate Return Air Grille w32h32 actual front end outer dimensions+ Product Details Size 28" x 32" or 32" x 28" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 29. 75" X 33. 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