14" x 36" or 36" x 14" Cube Core Eggcrate Return Air Grille Ceiling + Product Details Size -

+ Product Details Size - 26"w X 28"h is the size for the duct opening measurement only

Looks like new after years of use

Center Core is Removable for Easy Access and Maintence

+ Product Details Perfect Fit & Easy Sizing - Designed for a 10" x 16" or 16" x 10" duct opening (measured at the opening)

our product offers both aesthetic appeal and efficient airflow

14" x 36" or 36" x 14" Cube Core Eggcrate Return Air Grille Ceiling + Product Details Size -+ Product Details Size 14" x 36" or 36" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 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