wrote in message
...
Hi,

Is there such thing as PEX that you can use instead of copper for HVAC
refrigerant?

Thanks!

Sam

I don't know about PEX, but some plastics will let gas pass through it. The
2 liter and like Coke bottles will let the co2 out. If you look at a bunch
of them in a store, some will seem to have more it them than others. The
ones that look fuller are the old ones.

Also ,what is the pressuer ratings of PEX ? It may be too low.