G8 / 21.8mm left-hand nut adaptor for use with Butane and Propane cylinders of the type found in the UK, France, Holland, Belguim, Germany, Coatia and the Far East.
Solid brass construction
M20 outlet
Connect to regulator using: 4017 high pressure BS3212-2 hose or 4417 high pressure flexible stainless steel hose.