Liquid biocides continue to be a popular choice for control of microorganisms in industrial water systems and numerous treatment options exist in both oxidizing and non-oxidizing biocide categories. The purpose of this paper is to introduce a family of liquid biocides based on bromine chloride as the active ingredient. These products were developed with the requirements of specific water treatment segments in mind. Products are available for both the commercial and middle-market segments that deliver the convenience and consistent activity that is much valued in these market segments. Higher activity products were also developed for large-volume heavy-industrial applications that feature activity approaching that of fresh "off-the-line" bleach while still delivering the benefits of a stabilized bromine system. This paper will point out the unique features of this family of products and show comparative field and laboratory data to aid in proper biocide selection.