Uponor Solutions:
Residential Plumbing

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 tubing won’t pit, scale or corrode and, because of its flexibility, it also offers potential freeze-damage protection.

Uponor plumbing systems feature PEX-a tubing, which is considered the superior PEX tubing 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.

Benefits of Uponor PEX Tubing over Copper and CPVC

  • Flexible for fewer fittings, reduced leak-point liability
  • Resists corrosion, pitting and scaling
  • Retains more heat in hot-water lines
  • Resists condensation on cold-water lines
  • Expands up to 3X its diameter to help resist freeze damage
  • Connections do not require the use of dangerous chemicals or solvents
  • Offers a complete lead-free system from inlet to faucet
  • NSF International certification for water purity
  • Backed by a 25-year limited warranty on PEX tubing and ProPEX fittings