May cut through the stoppage, but do not clean the walls of the pipe very effectively. Since the inside diameter is already reduced by the layer of buildup, the line is subject to clog again. No warranty offered.
blasts the inside surface of the pipe, not just punch-ing through the clog, but leaving the inside of the pipe in clean, close to new condition. We guarantee an unobstructed flow through the line and we warranty the line to be free from stoppages for 90 days.*