Which LA-CO® flux meets ASTM B813?
Two types of LA-CO® flux meets the ASTM B813 code: both LA-CO® Regular Flux and LA-CO® Flux-Rite 90®. Both of these types of flux are water-soluble, and will prevent flux pitting corrosion from occurring on the inside of copper pipe. These types of flux will thoroughly wash through and leave the system clean and free of flux. They will not clog aerators, tankless water heater lines, or other systems.