20" x 32" or 32" x 20" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper resisting rust and wear while

resisting rust and wear while adding a sleek

with actual outer dimensions of 16

accordion-title { font-size: 18px

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

20" x 32" or 32" x 20" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper resisting rust and wear while+ Product Details Size 20" x 32" or 32" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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