Can anyone point me to the gasket for this?

@ladywendolyn How badly is it leaking when it does? Enough that you can just smell the gas or the odour is instantly etc. Obviously any leak needs fixing but knowing the approximate rate of escape might give a clue where to look.
The other point to remember about the gasket is that it is useless if either the flat surfaces on the top of the cylinder connection, or under the gasket in the connector are damaged. No matter how tightly it is screwed on the compressible material won't be forced into a deep scratch or completely seal off an errant hair.


Regards
John