The female end of a standard garden hose fits that sink drain.  Maybe
you can find something that was intended to cap a faucet outlet at a
plumbing supply or hardware store.

Mike

John Graham wrote:
> WTG - Want to Get
>
> Don't know where I lost it, but it's gone.  Just the little plastic strip
> left that held it when it was off.  You know what I'm looking for.  Just
> foward of the propane tank on the underside of the van is the pipe where
> the
> sink drain exits.  There is (or is supposed to be) a screw on plastic cap,
> attached with a little plastic keeper (that's still there dangling).
>
> Mine obviously ran off down the road somewhere.  I'd like a new one of some
> sort.  I see that the BD offers the entire drain pipe with the cap, I
> think.
> I just need a cap of some sort.
>
> Has anyone found a substitute that would fit??
>
> Thanks,
>
> John Graham
> 88 Westy
> Charlotte, NC
>