Can someone tell me what this is?

[rkschul1]

See circled spot in picture(hopefully uploaded correctly) Located underneath coach by propane tank and battery rack. Looks like connects to leveling system.

[kayakterp]

If you said which model you have that would probably help others with a similar RV but from what I can tell it looks like what I have at the back of my TT. My guess is it's an extra line for hooking up to your LP Gas.

[MRichaud]

Yup - quick connect for gas grill, firepit, etc.

[norty1]

That black plastic part is just a plug to keep dirt out of the QC valve. There is also a lever on the back that has to be operated to allow gas usage.

[rkschul1]

Thanks, i was actually thinking about a mod for that purpose. 😀
Now i would like to figure out how to hook up a supplemental propane tank. Last year got caught in snow in Colorado and was running very low.

[mini4mw]

https://www.youtube.com/watch?v=PFslRIIX8so

Good video on it (hooking up external tank to built in tank). Also a number of posts in the forum on the same thing.