Floyd,
There should be a plate that looks something
like this in your trailer, on mine, it is to the right of the entrance door.
Failing that, look over the fridge, on mine there is a sheet that was glued onto the fridge's flue at the factory when it was made that has it too.
IIRC on some models, it's also stamped into the tongue underneath.
Good luck!
__________________
“Courage is being scared to death, but saddling up anyway.”
...John Wayne...........................