16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Grille Color_White reducing electric bills and extending

reducing electric bills and extending HVAC machine lifespan

Just run your finger along the edge of the top plate and you will find a smooth finished surface

and keep the cold air out during the Winter Months

rotate it to align with the square frame

+ Product Details Size - 10"w X 36"h is the size for the duct opening measurement only

16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Grille Color_White reducing electric bills and extending+ Product Details Size 16" x 28" or 28" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 29. 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