In our 19, we installed this:
https://www.amazon.com/JACKYLED-Appr...7CQJ1VYH&psc=1
The counter top in a 19 is very limited spatially, so I installed this in our table. It is a 12amp, 1400 watt max appliance. We plug in a small electric heater at night, or the toaster oven at breakfast time. It has USB ports.
I find it quite useful on the table and don't miss another plug-in by the sink. The one drawback to this location, is that if you drop the table to make an extra bed, you need to remove the fixture since the front of a 19 slopes into the trailer space and interferes with the bottom of the plug strip. It only takes 20 seconds however, to remove and store the fixture. In our 19, there is a 110 plug receptacle in the PS side bench under the table.