16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille w25h25 Actual Filter Size – 9

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

actual front end outer dimensions are approximately 18 5/8" width X 34 5/8" height

+ Product Details Size – 8"w X 36"h is the size for the duct opening measurement only

you can quickly adjust airflow for year-round comfort

providing maximum flexibility

16" x 24" or 24" x 16" Cube Core Eggcrate Return Air Grille w25h25 Actual Filter Size – 9+ 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