This disinfectant toilet bowl cleaner is a pure white, stable emulsion, containing 23% hydrogen chloride. Carefully formulated with added detergents, it will quickly remove even the most stubborn rust, scale and mineral deposits from toilet bowls and urinals. Ideal for hard water areas. Special inhibitors protect plumbing, and the advance 4th generation biocide system incorporated in this product effectively eliminates bacteria, even in the presence of 5% blood serum. This product will clean, disinfect and deodorize with one simple application. Achieve proper restroom sanitation by using this powerful combination of quaternary ammonium compounds, detergents and inhibited hydrochloric acid.