Look here:

http://www.weidefamily.net/vanagon/HTML/05/08/slideshow.html

bob ... not sure about the maint. part but think that the need for a new one
will show up
if you can't pass emissions. Don't "think" you can do maint. on it though.

On Mon, Oct 26, 2009 at 3:12 PM, Michael Sullivan <sandwichhead@gmail.com>wrote:

> What is the purpose of this?  Any maintenance required?  Thanks.
> Michael in San Antonio
> 91GL AT 'Gringo'
> 73 Beetle
>