Nephros Inc is a commercial-stage company that develops and sells high performance water solutions to the medical and commercial markets. In medical markets, it sell water filtration products and waterborne pathogen detection products. In commercial markets, the company manufacture and sell water filters that improve the taste and odor of water and reduce biofilm, bacteria, and scale build-up in downstream equipment. The company's subsidiary is engaged in the development of its second-generation hemodiafiltration system and other products focused on improving therapies for patients with renal disease. The operating segments of the group are Water Filtration, Pathogen Detection and Renal Products of which key revenue is derived from Water Filtration segment.