There is no reason you can not put typical floor vent covers from Lowes or Home Depot in a mobile home. If you go to one of my pages where I have picture of my bathroom remodel, you can see in the first picture that I replaced the vent cover. It is cast iron, I bought it from Lowes. In fact everythi...

I have completely remodeled my entryway with new floors, new entry door & new doors to the bathroom & bedroom, including all new molding & paint.

I just spend a week gutting my bathroom down to the studs and installing all new EVERYTHING including drywall, tile flooring, door, door knob, light switch, outlet, literally everything in there has been replaced