8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille Black actual front end outer dimensions

actual front end outer dimensions are approximately 20 5/8" width X 20 5/8" height

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

Design – Easy unrestricted airflow for your HVAC system - 50° angled to provide maximum airflow

+ Product Details Size - 34"w X 8"h is the size for the duct opening measurement only

our product offers both aesthetic appeal and efficient airflow

8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille Black actual front end outer dimensions+ Product Details Size 8" x 36" or 36" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 37. 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