http://www.campingworld.com/browse/skus/index.cfm?skunum=30340&tab=spec

This is the ultimate multi purpose adapter. The existing fitting on the
regulator is the standard POL. To keep things as short as possible,
remove the female POL from this adapter and the male POL from the
existing regulator. Then one of the nipples can be used to connect the
two together. With some effort and care, the copper lines going into the
van can be re-bent and connected to the original outlet tee. Now you can
use an external tank to feed the van or use the van tank to feed a stove
or BBQ.

Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of Bob Mac
Sent: Tuesday, February 14, 2006 7:02 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: propane tank anatomy

  I'm looking for the same setup for my 84 westy. Since i put the propex
heater in i definatey need a back-up. Dennis, would you happen to have
the part # for that valve. I went to the marshall brass site but only
came up with a valve that had a p o l fitting on the supply side.