34" x 34" Cube Core Eggcrate Return Air Grille Grilles actual front end outer dimensions

actual front end outer dimensions are approximately 36 5/8" width X 14 5/8" height

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

from 4" to 20"

Actual Filter Size – 24 3/4"w x 24 3/4" x 1"

34" x 34" Cube Core Eggcrate Return Air Grille Grilles actual front end outer dimensions+ Product Details Size 34" x 34" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 75" X 35. 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