I don't think so.  I probably just clamped the hose tight to the copper pipe.  1/2" ID copper pipe is very close to 5/8ths OD. 

Stuart
'85 Westy

-----Original Message-----
From: Rocket J Squirrel [mailto:camping.elliott@gmail.com] 
Sent: Wednesday, May 30, 2012 11:45 AM
To: Stuart MacMillan; Vanagon Mailing List
Subject: Re: About that coolant drain tee

Stuart, that Prestone kit I bought had three sizes of tees for different
hose internal diameters. The provided 1/2'' was too small. The 5/8'' tee
fit. I'm wondering whether there are different hose diameters used in 
different model years of Vanagons.

-- 
Jack "Rocket j Squirrel" Elliott

On 05/30/2012 11:25 AM, Stuart MacMillan wrote:
> [snip] I recommend metal replacement.  I made one out of 1/2" copper
> pipe that time,

[snip]