8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille flat stamped steel 75"H – fits a 18"

75"H – fits a 18" X 10" duct opening

6" x 6" - 4-Way Curved Blade Supply Air Grille - Maximum Air Flow - HVAC Vent Cover

Design – Rigid gauge built for durability and long life in mind

+ Product Details Size - 16"w X 8"h is the size for the duct opening measurement only

Actual Filter Size – 33 3/4"w x 15 3/4" x 1"

8" x 32" or 32" x 8" Cube Core Eggcrate Return Air Grille flat stamped steel 75"H – fits a 18"+ Product Details Size 8" x 32" or 32" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" X 33. 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