Its nothing more than PVC tubing.  Same stuff
used in electronics for wiring. IT can take the
heat as it is being used.

From: azsun99 <azsun99@EARTHLINK.NET>
Date: 2007/12/04 Tue PM 07:06:49 CST
To: vanagon@GERRY.VANAGON.COM
Subject: fuel line protective sleeve

I am in the midst of replacing all of the fuel lines, but unfortunately, didn't think
to also order the gray plastic protective sleeve. The original is pretty dried out and
cracked in places. Is there an equivalent product at FLAPS that might work?
Jerry