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 product development process to design and commercialize an HWTS device that specifically meets the needs of low- and middle-income families. 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.