6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Grille w18h18 it effectively prevents unauthorized access

it effectively prevents unauthorized access

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

with actual outer dimensions of 26

14" Circular Round Aluminum HVAC Supply Grille Air Diffuser - With Butterfly Damper - Vent Duct Cover

6" x 32" or 32" x 6" Cube Core Eggcrate Return Air Grille w18h18 it effectively prevents unauthorized access+ Product Details Size 6" x 32" or 32" x 6" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 8. 5" X 34. 5". 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