22" x 32" or 32" x 22" Cube Core Eggcrate Return Air Grille Brown + Product Details Size -

+ Product Details Size - 28"w X 24"h is the size for the duct opening measurement only

& EN 13180 standards

+ Product Details Size – 36"w X 22"h is the size for the duct opening measurement only

The premium durable material guarantees that they will never rust or wear through

22" x 32" or 32" x 22" Cube Core Eggcrate Return Air Grille Brown + Product Details Size -+ Product Details Size 22" x 32" or 32" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 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