This replacement can be pricey. Any alternative suggestions for replacing this 4mm rubber hose for the evaporative canister at the top of fuel tank.

3.5mm VW vacuum hose might work. Might need to warm it up a bit before fitting it. At only $4.28/meter it could be worth a try.

https://www.karmannghia.com/Hose-35mm-Vacuu...er/item/N203531

I purchased some of that hose at a local parts store. Auto Zone I think.
Purchased more than I needed for a couple of bucks. Works great.
Bill.

We have all of the German hose. I'm just about to do this on my car and get the correct measurements for it so them so we (914Rubber) can start selling them how soon do you need it?

Bughaus carries 3.5mm hose for $4.95 a meter. I would imagine cip1 and others carry it too

No hurry. Car is now put away for the winter up here in Whitefish, Montana. Let me know when you get the hose. Thanks.
Dan