Compact Gas Cylinder - Threaded and resealing
You could use this with any stove of the correct type, but we stock it, because if you buy the Trayvax Ration: this is the one.
If you stroll down to your local camping shop, they may or may not have stock, and you won’t be sure if its the right one. This is the true dinkum. Clips in, works the first time, sits low in the Ration, so that the sides support your pot. Buy once and get it right.