14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Insulated Line Set actual front end outer dimensions

actual front end outer dimensions are approximately 14 5/8" width X 34 5/8" height

+ Product Details Size – 8" x 30" or 30" x 8" is the size for the duct opening measurement only

+ Product Details Size – 8"w X 10"h is the size for the duct opening measurement only

+ Product Details Outer dimensions: 9

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

14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille Insulated Line Set actual front end outer dimensions+ Product Details Size 14" x 26" or 26" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 27. 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