The 90 deg Elbow features a solder cup and FNPT thread. The fitting provides a means of changing the pipeline direction by 90 deg. Please refer to NIBCO® technical data sheets and catalogs for engineering and installation information. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. NIBCO® copper fittings are backed by a 50 years limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO® is the preferred brand in the industry.