The Oatey 1 lb. Safe-Flo Silver Wire Solder is a high-quality product designed for use on plumbing lines that carry drinking water. It is made from a lead-free alloy, ensuring the safety of the water supply. This solder has a wide melting range, ranging from 415 degrees Fahrenheit to 455 degrees Fahrenheit, allowing for easy and efficient application. It meets the requirements of the Safe Drinking Water Act, ensuring compliance with regulations. The solder is composed of a copper, bismuth, tin, and silver alloy, with a melting range of 420 F to 460 F. It also meets ASTM Standard B-32, further guaranteeing its quality and reliability. This solder is specifically formulated for plumbing and potable water line applications, making it an ideal choice for any plumbing project.