This is what you need: http://www.anyrvparts.com/ProductDetail.asp?PID=11652&DID=45&CID=229&DealerId=&SID=29&BID=  and what they call "the 10% valve" shown below. If you haven't already replaced the rectangular regulator do that too, all the list vendors sell the correct one.

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Vincent Dow
Sent: Tuesday, November 04, 2014 6:42 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: LPG tank ... white paint or varnished steel?

I'm going to paint it white today, then go look for an RV center to sell me a new valve and 80% (is that right?) regulator.

It's perhaps stupid to try and explain why I  wanted to keep the tank shiny steel. Some of you will get it. Some will not.

On Mon, Nov 3, 2014 at 10:51 PM, <JordanVw@aol.com> wrote:

>   In a message dated 11/3/2014 2:56:21 P.M. Eastern Standard Time, 
> ianvincentdow@GMAIL.COM writes:
>
> Is there any real bad reason for not leaving it in steel, with several 
> coats of varnish or other finish?
>
>  why??   its a propane tank.  just paint the stupid thing with rustoleum
> and move on to the next project.   varnish is meant for wood.
>