16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille w25h25 + Product Details Size -

+ Product Details Size - 36"w X 28"h is the size for the duct opening measurement only

providing maximum flexibility

Actual Filter Size – 9 3/4"w x 21 3/4" x 1"

actual front end outer dimensions are 7

16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille w25h25 + Product Details Size -+ Product Details Size 16" x 24" or 24" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 25. 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