The material were we working with is PVC , PP , PE Diameter of the pipes are 32 , 40 , 50 and the length is 1 MTR , 2 MTR and 3 MTR - PP pipes are supplied with double O rings - PVC pipes are supplied with integrated cuffs - The flexible sections are designed for optimal flow ( autoclean ) - Can be laid into concrete - Complete program of water trapson a saving space display It is the easiest drainage system on the market Diameter of the pipes 32 , 40 , 50 Lenght of the pipes 1 mtr , 2 mtr , 3 mtr Materials : PVC , PP , PE