6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel of up to 300m3/h

of up to 300m3/h

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

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

Actual Filter Size – 29 3/4"w x 13 3/4" x 1"

6" x 10" or 10" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel of up to 300m3/h+ 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