Special product for saving. Aqueous solution of Chlorine Dioxide (500 ML) at 0.2-0.3%, minimum content of the factory output. Free of any kind of excipients, preservatives or stabilizing chemicals. No activator is required. The dark color of the container glass protects the product from ultraviolet light and provides a screw cap, usable as a 6 ML meter. Product designed for water purification and elimination of bacteria, fungi, parasites and other agents that may be toxic for human or animal consumption. Used as a powerful biocide and a quick remedy for non-potable water.