16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Grille 6in diameter + Product Details Size –

+ Product Details Size – 34"w X 12"h is the size for the duct opening measurement only

10"w X 8"h Is The Size For The Duct Opening Measurement Only

Actual Filter Size – 15 3/4"w x 15 3/4" x 1"

+ Product Details Size – 8"w X 30"h is the size for the duct opening measurement only

and keep the cold air out during the Winter Months

16" x 32" or 32" x 16" Cube Core Eggcrate Return Air Grille 6in diameter + Product Details Size –+ Product Details Size 16" x 32" or 32" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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