The Nibco® lead-free wrot copper solder pressure female adapter is used in residential and commercial systems such as potable water, air conditioning and refrigeration. The female adapter features a solder cup and female NPT thread. These fittings provide a means for adapting a solder connection to a threaded connection. 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 years limited warranty. Because of its longstanding reputation for innovation and precision in design and manufacturing, Nibco® is the preferred brand in the industry.