What is PEX?
PEX is an acronym for crosslinked polyethylene. It is a flexible, durable, proven piping product that has been used in plumbing systems for more than 20 years. PEX won’t pit, scale or corrode and, because of its flexibility, it also offers potential freeze-damage protection.
Uponor plumbing systems feature PEX-a, which is considered the superior PEX manufacturing method in the industry. PEX-a is the most flexible of all PEX types, and because of its shape and thermal memory, it can use ProPEX® expansion fittings which are the only fitting system that actually gets stronger over time – making it highly leak resistant.