26" x 34" or 34" x 26" Cube Core Eggcrate Return Air Grille return grille accordion-title { font-size: 17px

accordion-title { font-size: 17px

+ Product Details Size - 8"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 28"w X 6"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 26 5/8" width X 34 5/8" height

Installation Location – sidewall and ceiling

26" x 34" or 34" x 26" Cube Core Eggcrate Return Air Grille return grille accordion-title { font-size: 17px+ Product Details Size 26" x 34" or 34" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" X 35. 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