January 28, 2026

I have watched installers struggle for hours, trying to align a rigid pipe perfectly with a water heater’s ports. A simple union elbow would have saved the day. Yes, union elbows are an ideal solution for connecting PEX tubing to fixed equipment like water heaters and boilers. They combine a 90-degree turn with a detachable […]

I once saw a team spend an entire day dismantling a wall to replace a single faulty valve in a complex PEX system. That costly mistake perfectly illustrates why unions are not just fittings; they are strategic tools. Union fittings are essential in complex PEX layouts because they create intentional, serviceable connection points. They allow

A client once called me in a panic after adjusting a fitting, fearing a leak. I assured them a proper design is made for exactly that. The short answer is yes, but it relies on specific design features. Yes, a properly designed adjustable elbow can absolutely maintain a reliable seal after angle adjustment. Its capability

I once saw a technician spend hours dismantling an entire manifold to fix one small leak. That moment perfectly illustrated why the right fitting is not just a part, but a critical tool for efficient installation and future maintenance. Union elbows are used in PEX radiant heating systems because they provide a removable, sealed connection

I recently helped a contractor who was stuck because his pipes didn’t align. A simple swivel union solved his problem, but only because he used the right connection method from the start. A union elbow for PEX systems features a fixed end with standard PEX barbs. You secure the PEX pipe to this end using