Viega PureFlow fittings, manifolds, and tubing are easy to install and engineered to help reduce water waste in potable water systems. PureFlow is the only system in the industry that offers press transition fittings – allowing you to easily transition from PEX to copper in traditional branch and tee installations. Looking to reduce the number of fittings (and potential for leak points) behind the wall? PureFlow lets you install remote manifolds giving each fixture in a home or building its own PEX tubing line.