This cap fits the latest Weltonhurst 5 gallon barrels. The brass valve has combined inlet and pressure release valves.
Can be used with the 8 gram disposable CO2 cartridges and a suitable bulb holder.
It can also be used with a Sodastream cylinder when fitted with a Sodastream valve adaptor.
The cap comes complete with a white flat-sectioned washer.
Please note: The photo does not shown the pin valve.