12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Grille 14in diameter 16" Diameter Is The Size

16" Diameter Is The Size For The Duct Opening Measurement Only

and squirrels

actual front end outer dimensions are approximately 26 5/8" width X 12 5/8" height

+ Product Details Size – 24"w X 6"h is the size for the duct opening measurement only

12" x 16" or 16" x 12" Cube Core Eggcrate Return Air Grille 14in diameter 16" Diameter Is The Size+ Product Details Size 12" x 16" or 16" x 12" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" X 17. 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