14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille 10" Round Duct Pipe actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 26 5/8" height

+ Product Details Size - 18"w X 20"h is the size for the duct opening measurement only

Actual Filter Size – 17 3/4"w x 11 3/4" x 1"

+ Product Details Size – 8"w X 34"h is the size for the duct opening measurement only

+ Product Details Size – 24" x 32" or 32" x 24" is the size for the duct opening measurement only

14" x 22" or 22" x 14" Cube Core Eggcrate Return Air Grille 10" Round Duct Pipe actual front end outer dimensions+ Product Details Size 14" x 22" or 22" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 23. 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