Uponor PEX has dominated the residential plumbing market for years, and now with the introduction of the industry-first Uponor AquaPEX® pipes and ProPEX® expansion fittings in 2½" and 3" sizes, PEX is now taking over the commercial plumbing sector as well.


So what exactly is PEX?


PEX is an acronym for crosslinked polyethylene. It is a flexible, durable, proven piping product that has been used in plumbing and radiant heating and cooling systems for more than 40 years. PEX tubing won’t pit, scale or corrode and, because of its flexibility, it also offers freeze-damage protection.


Uponor PEX pipe is manufactured to be a copper tube size (CTS) pipe with a wall thickness conforming to a standard dimension ratio of 9 (SDR9). It is approved by all model residential and commercial plumbing codes for domestic-water piping applications, according to ASTM F876 and F877 standards.


What makes Uponor PEX superior to CPVC and copper pipes?


1.  Flexibility for fewer required connections

2.  Thermal conductivity

3.  Surge pressure and sound intensity

4.  Freeze resistance

5.  No pitting, scaling or corroding


To take a deeper dive into the list above and learn more about the primaries of PEX, check out Plumber Magazine’s recent article, “PEX 101: Everything You Need to Know About Flexible Plastic Piping”.