24" x 26" or 26" x 24" Cube Core Eggcrate Return Air Grille Grilles actual front end outer dimensions

actual front end outer dimensions are approximately 30 5/8" width X 24 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 36" OR 36" x 30" duct opening (measured at the opening)

Vertical blades in the back

Width vs Height:

+ Product Details Size - 32"w X 30"h is the size for the duct opening measurement only

24" x 26" or 26" x 24" Cube Core Eggcrate Return Air Grille Grilles actual front end outer dimensions+ Product Details Size 24" x 26" or 26" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 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