Whiteline PPI pipe is used hospitals, research facilities and other high-purity liquid transportation applications where dependable, high-quality systems are required. Whiteline PPI is manufactured from pure unpigmented virgin Type I nomopolymer polypropylene, making it ideal for transporting deionized, distilled water or other liquids where a high degree of purity is required. Joining is done by socket fusion which provides a strong, durable, and hermetically-sealed joints in high-purity piping systems. This heat fusion method uses a thermostatically controlled heat tool for quickly creating permanent and tamper-proof joints that perform in severe use applications. Comes in standard 10-foot lengths in ½ in., ¾ in., 1 in., 1-1/2 in., and 2 in. diameters.