This NIBCO cast bronze solder pressure 90° vent elbow is used in residential and commercial plumbing applications. The 90° vent elbow features solder cups and a drain port with cap. This fitting provides a means of changing the pipeline direction 90° as well a means to drain the pipe. 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 manufactured in an ISO 9001 certified facility, and backed by a 50-year limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, NIBCO is the preferred brand in the industry.