32" x 32" Cube Core Eggcrate Return Air Grille Ceiling + Product Details Size –

+ Product Details Size – 18" x 26" or 26" x 18" is the size for the duct opening measurement only

+ Product Details Size – 36"w X 10"h is the size for the duct opening measurement only

Constructed from high-impact

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 36" OR 36" X 14" duct opening (measured at the opening)

32" x 32" Cube Core Eggcrate Return Air Grille Ceiling + Product Details Size –+ Product Details Size 32" x 32" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 33. 75" X 33. 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 electric