Dow is launching HYPERTHERM 2399 resin for domestic and commercial hot- and cold-water plumbing pipes. The new resin enhances the flexibility of plastic pipe so installers can bend water lines at turning joints, allowing for ease of installation. HYPERTHERM 2399 resin is the first product to meet U.S. building codes and product standards for plumbing while also achieving Level 5 chlorine-resistance certification. This key accreditation gives contractors and homebuilders the flexibility to install continuous loop, on-demand recirculation and traditional plumbing systems. The resin provides excellent taste and odor characteristics for great-tasting water. Pipes made with HYPERTHERM resins are natural insulators and help improve the energy efficiency of water heating.