120mm media door fan vent beauty ring.

Need ventilation in a household closet or room? Most doors are hollow today. and do not cleanly provide a way to install a fan.This provides an aesthetically pleasing way of adding a fan to your household door. Drill a 4.5" hole with a hole saw. Press this ring in your door. screw the fan into the door on the back side with #8 x 1/2" wood screws. Use a silent fan and a 1Amp 12v wall wart supply. voila instant media closet fan porthole!