22 mm stopcock Polyfit. Cold water.

PolyFit is a demountable and reusable white plastic push-fit system for domestic hot and cold water supply, radiator and underfloor heating installations. Pipe stiffeners must be used when using plastic pipe ; these are not required for copper pipe. PolyFit must not be used for gas, oil, compressed air, solar heating, primary or gravity pipework from a solid fuel back boiler.