... construction materials 2.can be used in purified water pipe system. Features:1) Material: PPR2) ... 80775) Colors: white, gray, green, orange1) Healthy and non-toxic, bacteriologically neutral, conforming to drinking waterstandards2) ... minimum thermal conductivity5) Lightweight, convenient to transport and handle, good for labor-saving6) Smooth inner ... .25MPa PPR pipe for hot water and cold water