22" x 22" Cube Core Eggcrate Return Air Grille ceiling Actual Filter Size – 13

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

1/4” - 6518 PSI

Location – ceiling and sidewall

please note that the total outer dimensions of the grille measure 8" in diameter

actual front end outer dimensions are approximately 16 5/8" width X 38 5/8" height

22" x 22" Cube Core Eggcrate Return Air Grille ceiling Actual Filter Size – 13+ Product Details Size 22" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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 electric