>>1976196Hello, French bro.
First of all, there is more than one specific kind of valve and you should only buy compatible cartridges. Everyone will tell you to buy their other products but it's your job to figure what is compatible.
This kind of cartridge for instance is only half of the price of a regular one but isn't compatible with anything but the right campingaz stoves.
I think they said to only use butane/propane because some idiots will try to use ethanol or car fuel like if it was a liquid fuel stove. 100% propane will work.