Bio-Tek - A 26% phenolic disinfectant, non-irritating, non-corrosive and effective in the presence of organic material. Synthetic detergent kills most of gram positive and gram negative microorganisms, provides effective cleaning and disinfecting; non-flammable and non-volatile in use directions, excellent solubility, dilutes in hot, cold, soft or hard water of up to 1,000 ppm water hardness. After product use as a disinfectant, it will biodegrade in sewage systems and/or the environment. Economical. Mix 1/2 oz. to one gal. of water. Kills viruses and bacteria. Non-toxic, non-irritating, non-corrosive. 100% biodegradable. 7-day residual activity.