September 29, 2026

From Dry Fit to Secure Connection: The Uponor ProPEX^® Advantage

By Maddy Dolby

Dry fitting is one of the worst problems to have when completing a project, because it can lead to a lot of water on the floor.

A dry fit, according to GF Trainer Jed Koep, is when a plumber pre-assembles a piping connection but doesn’t use a tool to complete it. A dry fit can hold pressure through an air test, but it will eventually pop off and end up leaking. This can happen anywhere between a few days, weeks, or months.

With an Uponor ProPEX® connection system, a dry-fit connection is physically impossible. The pipe must be expanded first before the fitting can be inserted. With this connection system, the possibility of a dry fit has been completely eliminated.

The Uponor PEX-a pipe and ProPEX connection system is designed for strength and durability, offering the most efficient use of materials for the most effective water delivery in both commercial and residential applications.

For more information about the Uponor ProPEX connection system, click here or check out this video to see the difference between a dry fitting and an Uponor ProPEX connection.