PATH’s Safe Water Project is implementing innovative methods to enable commercial enterprises to produce, distribute, sell, and maintain effective household water treatment and safe storage (HWTS) products for low-income populations in multiple developing countries around the world. This poster summarizes PATH's market segmentation efforts to understand the various consumer groups for HWTS products in parts of Cambodia and Vietnam. This poster was presented at the Water and Health: Where Science Meets Policy conference hosted by the University of North Carolina Water Institute in October 2011.