Gas leak at regulator, horizontal, 2006 2720

I just got my used 2006 2720 SL, love it, but haven't camped yet.
Have a gas leak at the regulator, between the two horizontal tanks,
supposedly, by owners manual, its a Manchester 10487TC gas tank(s)
I need to replace that automatic regulator valve, that switches from the left tank to the right tank. (that is where the leak is)
Does anyone know the exact right part? and its number? and where to get it?
thanks'
Marc

[BrucePerens]

It's time to replace the hoses from the regulator to the two tanks as well. The ones on my 2004 3023 are vertical, I found that the plastic piece that connects the hose to the tank was failing, that the connection to one of the tanks would leak unless adjusted just so, and that the hoses had stiffened. As far as I could tell the changeover valve would no longer change over on its own.

I did not get the identical part, I liked this one better: Cavagna (52-A-890-0006C) Auto Changeover Regulator Kit, and these hoses: Mr. Heater F271158-12 12" Propane Hose Assembly. I have not installed them yet and the ones you need may be different.

appreciate you taking the time to respond, Marc

on my old leaky gas regulator, at the bottom,
there are two outlets, when I look on line, all the automatic regulators have only a single outlet. Do the two lines go to different appliances, or does one go to a outside kitchen setup, or what??
can I get a single outlet regulator, and put a T on it
(I am above my plumbing mechanical pay grade here, by far.
thanks again,
Marc