I got this picture off of the internet. I've circled the box where the converter is housed.
The converter on my used 2014 had already been replaced with a Progressive Dynamics converter by the previous owner. My point is that you will just need to look in the box to see what is in there because it may not be the original converter from the factory.
2013 Jayco Eagle 324BTS
2017 Puma 295BHSS
2018 Surveyor 265RLDS
2016 GMC 2500HD CrewCab SLT 4x4 Duramax