John Guest Black Union Elbow, 1" CTS

The John Guest Black Union Elbow, 1" CTS, from Reliance Worldwide Corporation provides a 90-degree turn for full 1" CTS pipe runs, making it ideal for larger point-of-entry and whole-house water treatment installations. It belongs to the UV-resistant black PEI Twist and Lock range developed for the most common water filtration and conditioning applications, and it serves equally well in plumbing repair, remodel, marine, and RV work.

At a full 1" size, this elbow supports the higher flow rates typical of main supply lines feeding point-of-entry filter housings and softeners. Manufactured from high-quality engineered PEI plastic with EPDM O-rings, it forms a leak-free connection that withstands a wide range of conditions, and the Speedfit push-in system assembles in seconds without tools, a major time saver on larger pipe where soldering or crimping is slow and demanding.

Features

• Push-fit connections for tool-free, time-saving assembly
• Suitable for use with PEX, CPVC, and copper pipe
• Rated for hot and cold water and hydronic heating
• Lead-free and non-toxic
• Truly demountable without damage to pipe or fitting
• Corrosion-free with no scale build-up and no risk of fire or flames

The UV-resistant black body suits exposed installations in basements, garages, and outdoor settings where standard fittings might degrade under sunlight. Because installation requires no torch, there is no fire risk near finished walls or flammable materials, an important safety advantage on whole-house retrofits. To install, cut the 1" CTS pipe square and deburr the ends, then push each pipe fully into the elbow until it bottoms out, confirming each grip with a firm tug. The fitting is fully demountable for later servicing and can be reused once the line is reworked. For robust, full-size right-angle turns in whole-house treatment plumbing, this John Guest black union elbow delivers professional results across demanding applications.

As the largest size in the JG Twist and Lock range, this 1" union elbow coordinates with the matching black connectors and adapters built on the same engineered PEI platform, so a whole-house layout can be assembled from one consistent family of fittings. For main supply lines feeding softeners and point-of-entry filters, the combination of full 1" flow, torch-free installation, and demountability is hard to match.