Used either as a supply pipe to micro pipe, drip lineandleaky pipe or with directly inserted drippers as a watering line. This pipe is made of LDPE which makes it both flexible and robust. Use with 13mm barbed fittings for a secure connection. Features Pressures up to 4 bar. 13mm internal / 16mm external dimensions. Hold in place using 16mm stakes. Use with hole punch when connecting drippers direct to the pipe Use goof plugs to repair holes in supply pipes. A full range of 13mm barbed fittings are available: Cross, Tee, Elbow, ConnectorandGoof Plugs.