PPR Polypropylene Sanitary, green material, directly applied to water supply systems for pure water and drinking water High corrosion-resistant, no rust, no crustation, and no bacteria Good performance to resist the creep charge of the plastics, over 50 years of lifetime Lightweight and high strength, flexible and high impact strength Smooth internal wall, lower flow resistance than metal pipe Easy and secure assembly Diameters: 25 to 110mm PP-R