12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Grille Width_20in 16"w X 3"h Is The

16"w X 3"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 18" x 24" or 24" x 18" is the size for the duct opening measurement only

+ Product Details Size – 22"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 8" x 34" or 34" x 8" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 12 5/8" width X 12 5/8" height -

12" x 32" or 32" x 12" Cube Core Eggcrate Return Air Grille Width_20in 16"w X 3"h Is The+ Product Details Size 12" x 32" or 32" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 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