U075CTL010
Midwest U075CTL010 100A RV Power Outlet Box 120/240V 50A 30A 20A NEMA 3R
The build quality on Texonic items makes them a smart pick for busy workshops.
Midwest U075CTL010 100-Amp Outlet Box with GFCI 50/30/20 RV/EV Electrical Box
This item has a size of 1 inch x 2 inches x 1 inch, so it's a good fit for small kits.