PP Plain Union (Metric x Inch)

A polypropylene pipe fitting that facilitates the connection of two polypropylene pipes; one of metric and the one of imperial - essentially converting the pipeline from metric to imperial (or vice versa). The union consists of two ends that are to be connected to the pipes with socket-fusion and a threaded collar that compresses an 'o ring' for water tightness. The collar can be unthreaded after installation to separate the pipes for easy maintenance.