Uponor ProPEX®

Trusted. Proven. ProPEX.

Decades of reliability for professionals

The Professional PEX Connection System

Uponor created the design for the revolutionary PEX expansion connection standard that the industry uses today — ASTM F1960.

Other PEX expansion fittings claim they’re compliant to F1960, but that doesn’t mean they’re tested and listed to the standard. Those fittings oftentimes have limited testing, may not meet local code, and could pose a risk of failure.

Uponor provides professionals with confidence the fittings they’re using are backed by third-party certification and a solid warranty of 25 years on the system of Uponor PEX-a pipe and the ProPEX connection.

With more than 30 years of design, testing, manufacturing, and field experience, ProPEX is the solution professionals trust for their PEX piping systems.


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Not All PEX Expansion Fittings are the Same

Uponor ProPEX® systems are designed for strength and durability, offering the most efficient use of materials for the most effective water delivery system — all backed by a 25-year transferable limited warranty.

Discover in this Mechanical Hub article the differences in PEX expansion fittings and how you can protect your business from risk and keep your valuable reputation solid with your customers. 

Uponor Systems Review & Comparison

The incredible flexibility of Uponor PEX-a pipe helps eliminate fittings and allows for longer runs of pipe. But when it comes to fittings, the ones you do use matter. Uponor ProPEX fittings are made from engineered polymer (EP) and grow stronger over time. See how Matt Risinger from The Build Show used Uponor in his own home.