6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel + Product Details Size -

+ Product Details Size - 30"w X 34"h is the size for the duct opening measurement only

One Towards The Top Of The Door

+ Product Details Size – 34"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 21 5/8" width X 33 5/8" height

actual front end outer dimensions are approximately 12 5/8" width X 16 5/8" height

6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel + Product Details Size -+ Product Details Size 6" x 10" or 10" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 11. 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