Pipe stiffeners are an integral part of the joint when using Polyplumb pipe with either Polyplumb fittings or compression fittings, and need to be fully inserted in to the pipe end. They are not required when using copper pipe
Time efficient, no nonsense one step joint process
Polyplumb plastic pipe stiffeners are used when jointing sections of Polyplumb pipe
Suitable for Domestic / Central Heating
25 year guarantee against defects in materials or manufacture of the Polyplumb system