Louvered Vent with bug screen

This is a louvered vent I made to exchange fresh air inside my travel trailer. It also features a bug screen to keep larger insects out. I've uploaded both 2" and 3" versions. I've also went ahead and uploaded multiple models for various depths that can be mixed and matched from .5" ~ 4" wall depth.

The louvers are angled at 30 degrees - no supports are necessary.