24" x 30" or 30" x 24" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" If you are looking to

If you are looking to enhance your project with a top-of-the-line unit

+ Product Details Size – 22"w X 34"h is the size for the duct opening measurement only

Actual Filter Size – 25 3/4"w x 9 3/4" x 1"

+ Product Details Size - 12"w X 8"h is the size for the duct opening measurement only

+ Product Details Size - 20"w X 34"h is the size for the duct opening measurement only

24" x 30" or 30" x 24" Cube Core Eggcrate Return Air Grille Compatible with Duct 6" If you are looking to+ Product Details Size 24" x 30" or 30" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 31. 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