EZ-Clone Clear Rez is designed to help keep hydroponic reservoirs, tubing, water pumps and irrigation systems free from buildup during the cloning process. Clear Rez is easy to use and can be used during any stage of plant development. By keeping your cloning machine clean you increase the rooting success of your plant cuttings. Clear Rez keeps your reservoir water crystal clear and free from pathogens to help promote prolific white root growth! Active ingredient: Hypochlorous Acid