This listing is for a Pack of 5 Pre-soldered with lead-free solder, eliminating the need for additional soldering equipment and reducing installation time and labor. Straightforward to install, requiring only cleaning of the pipe ends and heating with a torch to create a secure and leak-free connection. The solder joints in solder ring fittings are factory-applied, ensuring consistent quality and reliability across all fittings, reducing the risk of installation errors or leaks. Solder ring fittings provide a tight and durable seal between pipes, minimizing the risk of leaks and water damage in plumbing systems.