8" x 22" or 22" x 8" Cube Core Eggcrate Return Air Grille w14h14 Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 27 3/4" x 1"

+ Product Details Size – 24"w X 36"h is the size for the duct opening measurement only

75" Width X 19

actual front end outer dimensions are approximately 22 5/8" width X 18 5/8" height

+ Product Details Size – 18" x 22" or 22" x 18" is the size for the duct opening measurement only

8" x 22" or 22" x 8" Cube Core Eggcrate Return Air Grille w14h14 Actual Filter Size – 27+ Product Details Size 8" x 22" or 22" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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