Low voltage bracket/box with ENT knockout

This is a low voltage bracket/box that can be connected to conduit. I've only seen new-work boxes with this feature, so I remixed the [low voltage bracket](http://www.thingiverse.com/thing:1446017) by [lilfonzy](http://www.thingiverse.com/lilfonzy) to add a support with a hole that can fit an 3/4" ENT conduit snap in adapter.

Refer back to the original item for the arms which will hold the bracket in the wall opening.