I don't know the size of the rear heater fittings --- but I do know I once
lost a plastic T fitting while on the road and found a bronze T fitting in
the plumbing dept at Home Depot that fit and is working fine to this day. I
don't think it will ever rust and it sure won't crack and break like the
plastic one did.

Cheers,
Doug

On 1/4/08, Mike Collum <collum@verizon.net> wrote:
>
> I'm thinking about replacing my rear heater T fittings with plastic ones
> in that my original metal ones have just about rusted away.  It's seems
> there's always a downside.
>
> Mike
>
>
>
> Stephen Grisanti wrote:
> > VW's ill-advised use of plastic fittings is not
> > limited to the Vanagon.  I had a '76 Dasher wagon that
> > utilized a plastic T-fitting at a heater hose junction
> > and when that cracked I lost a lot of coolant.
> > Discovered the problem just in time to purchase a
> > costly (as I recall) replacement part.
> >
> > Not quite the life/van threatening problem that the
> > fuel fitting is, but exasperating nonetheless.
> >
> > Stephen
>

--
http://www.dougalcock.com