The Wavin Hep Vo Running Adaptor is made of polypropylene (PP) and includes 40 mm male threaded x female threaded connections. Fittings in the Hep VO range are suitable for use in sanitary appliances such as basins, kitchen sinks or showers and are also suitable for installation on discharge pipework from unvented domestic hot water systems and condensate lines from boilers and air conditioning units.