As long as the grill does not have it's own regulator valve, you can get those quick connect fittings and just remove the reg valve off the grill and the adapters and hose and there you go.
My new rig came with a grill that mounts on the side of the trailer and can plug into the rigs propane supply. It's just those quick connect things like on air compressors and such.
I still take along a 20lb cylinder for my propane fire pit, and I still have my old propane Coleman 2 burner stove, but they both have their own regulators on them and that's fine.. I just use my bbq cylinder.
Until the grill that came with the trailer dies, I'll use it and then adapt and over come! :)
Good luck! Mitch
