Attach these nozzles to your high-pressure water line to flush grit and grime out of blocked pipes. They’re compact enough to fit through tight curves and elbows, and powerful enough to loosen debris and flush it away. The orifice at the front of the nozzle shoots a jet of water to pierce the blockage. Orifices at the rear propel the nozzle through your pipe, rinsing grime off of the pipe walls as they go. These nozzles are often used in place of drum-style drain cleaners—however, they do not have a blade to cut through tree roots or other dense material.