26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille w22h22 line-height: 1

line-height: 1

+ Product Details Size – 28" x 36" or 36" x 28" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 32 5/8" width X 30 5/8" height

+ Product Details Size – 22"w X 14"h is the size for the duct opening measurement only

26" x 36" or 36" x 26" Cube Core Eggcrate Return Air Grille w22h22 line-height: 1+ Product Details Size 26" x 36" or 36" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" X 37. 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