[Greenbuilding] PEX tubing

[Bruce Donelson]

I plan to use PEX tubing for my in floor heat and my plumbing supply lines.
Is PEX tubing, PEX tubing?   Does it matter if I get it from  Menards,
Lowes, Home Depot, or would I be better off buying it from a company that
only deals in PEX tubing?   Do you think all the tubes specs are the same?
I don't want to put it under concrete and then find out I should have used a
different brand or type.     Ideas or suggestions or recommendations on
reasonably priced PEX.     Thanks     Tom

For floors I think you are supposed to use the PEX with the aluminum in it.
Bruce