14" x 24" or 24" x 14" Cube Core Eggcrate Return Air Grille 8" Round Duct Pipe Actual Filter Size – 33

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

+ Product Details Size – 22"w X 12"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 18 5/8" height

actual front end outer dimensions are approximately 30 5/8" width X 36 5/8" height

14" x 24" or 24" x 14" Cube Core Eggcrate Return Air Grille 8" Round Duct Pipe Actual Filter Size – 33+ Product Details Size 14" x 24" or 24" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 25. 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