These days, I decorated and laid hot and cold water pipes at home, using authentic Taurus PPR. There is no anti-counterfeiting mark and duplicate code on the pipeline, but there is a printed anti-counterfeiting number of 16 digits, which can be inquired by telephone. Anti-counterfeiting signs and bar codes are affixed to fittings such as tees, straight pipes and bent pipes. Hot and cold water pipes are all gray, with a red line (hot water pipe) and a blue line (cold water pipe) parallel to the pipes respectively.