Split Rock™ filters use the principle of diffusiophoresis to remove contaminants from water. This revolutionary technique, diffusiophoretic water filtration, promises to provide inexpensive clean water to the world.

Split Rock™ filter technology provides commercially important advances in inlet pressure manifolds, outlet splitter structures and diffusiophoretic water channel structures, as well as in methods related to manufacturing, operating and cleaning commercial diffusiophoretic filters. One of our most exciting technologies in development is the removal of PFAS, including short-chain PFAS, in a cost-effective fashion. Split Rock™ filter technology encompasses both carbon dioxide-driven and ion-exchange-driven diffusiophoretic filters.