The SmartPlug system is a great addition to any RV or boat/yacht. The SmartPlug team identified a problem with the common 30 and 50 amp plug systems in that as corrosion from moisture set in, historical systems generated a lot of heat and were creating fires. They set out to change that. This system is super easy to use, clips in to the Airstream side wall plug and offers less impedance, higher conductivity and better safety overall. We’re delighted to use this system for Wally the Airstream.