Safe to use on potable water systems.
Lead and acid free soldering flux.Pre-Tinning Paste, Cleans, Fluxes, and Pre-Tins, Plumbing, 3 oz. FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning HVAC/R, plumbing, electrical, and construction markets. Smooth consistency.