Is Rifeng PPR pipeline double-layer pipe or hardcover series?

Each has its own advantages. The advantage of Rifeng PPR pipeline double-layer series is that it is relatively thick, which can isolate light, avoid the breeding of moss in the pipeline, reduce the breeding of bacteria and ensure the cleanliness of water quality. Rifeng porcelain core series adopts high-efficiency nanometer, which can resist bacteria, with an antibacterial rate of 99.99%, high sterilization degree, green and beautiful appearance.