We got a new RV pretty cheap and saw this after we left with the RV – curious why this would be there. It’s located right behind the passenger side and currently isn’t hooked to anything from the inside…
Four Wind 2004 Class C! All I can think of is Breaking Bad references… ????
My guess would be some sort of drain.
I would have guessed fridge drain but you said nothing behind it.
Could something have been in that spot? Maybe they ran a dehumidifier.
Might could be some kind of handcrafted urinal discharge port.
If it isn’t connected to anything- then I know exactly what it is. Removable. Patch and seal the hole
Glory hole? lol likely some sort of condensation drain I’d guess. Hard to tell from the pic. Is there any utilities near by?
It’s a male trailer.
Either way it looks like it’s about to be the source of a leak in your RV. Silicon that mug!
If it’s not for a dehumidifier it might be for a dryer exhaust vent.
