6" x 18" or 18" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel Total outer size of this

Total outer size of this grille is

this guard fits almost any thermostat and blends seamlessly into any setting

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

& EN 13180 standards

actual front end outer dimensions are approximately 12 5/8" width X 22 5/8" height -

6" x 18" or 18" x 6" Cube Core Eggcrate Return Air Grille Curved Blade Steel Total outer size of this+ Product Details Size 6" x 18" or 18" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 7. 75" X 19. 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