Hopefully this hasn't been discussed too many times and is in the right
group, but here goes....

I'm slowly replacing the 50 year old galvanized pipes in my house with PEX,
seems like a much easier task and the materials are cheaper. That said, one
problem that I'm running into is that there is SO MANY kinds of PEX on the
market. My question is of compatibility - is, for instance, Zurn PEX tubing
compabitible with non Zurn fittings? Is PEX tube PEX tube, or does it
really matter?

To be honest, I find the Zurn stuff to be just fine, but its impossible to
find locally and I can't seem to locate an online dealer - not to mention
the lack of fittings.

Is this a problem because PEX is new, or because I'm not a contractor and
just not experienced enough?