2" Wirsbo AQUAPEX® Tubing Expansion Joint Kit
Uponor recommends expansion joints for every 50 feet of tubing to accommodate the expansion and contraction of PEX tubing caused by temperature changes.
To eliminate the added labor and costs required to build a loop from scratch, Uponor created an industry-first: the 2" Wirsbo AQUAPEX® Tubing Expansion Joint Kit. Not only does the kit cost less than buying the individual components and saves time over building a joint from scratch, because the kit requires fewer joints, it also provides more reliable performance.
The unassembled kit includes the following:
- One pre-formed 2" expansion loop
- Two 2" brass elbows
- Four 2" ProPEX® Rings
The kit is 44% less expensive than purchasing the 13 individual components (four feet of tubing, four elbows and eight rings) needed for onsite construction of an expansion joint.

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Features and Benefits

Saves labor time

Saves 44% over purchasing individual components

Requires fewer joints

Provides more reliable performance
Installation Considerations
Currently, Uponor offers these kits for plumbing only. However, Uponor is now developing a separate kit to use in concrete for radiant heating and cooling.
For Professionals
Building partnerships for better human environments.
As a leading provider of radiant heating and cooling, plumbing and fire safety solutions, we lay the foundation not only for our products and services, but also for professional contractors and installers like you who are committed to providing the untimate in home comfort systems.
As an industry professional, you're an extension of the Uponor brand, building awareness and educating consumers about Uponor and our top-of-the-line systems: plumbing, fire safety, and radiant floor heating. And we're here to help you, every step of the way