Alloy of tin, silver, copper and bismuth Meets requirements of Safe Drinking Water Act for use on copper potable water lines Provides excellent flow and fill characteristics 420 to 460 degrees Fahrenheit melting range Includes 1/4 lbs solid wire solder 0.117 in. diameter, 1.7 oz No.95 lead free tinning flux, acid brush, sand cloth, and how-to instructions