My old Bluet (Camping Gaz) threaded into the top stove section then penetrated the tank with a pin. The MSR threads directly onto the tank. The Camping Gaz hasn't been available in the US for decades. Even the MSR fuel cannister is getting hard to find. Walmart carried a Coleman version for a while but apparently no longer. You almost have to find an REI or EMS to re-supply. This suddenly makes it less desirable for an extended trip. You won't find a roadside retailer in a rural area.



edit- Looks like Walmart now sells the Optimus version of the MSR style tank, but it has to be purchased in advance through Walmart dot com. You'd have to order ahead to have one waiting for you.

On one trip I had to buy one of these as an emergency replacement stove in a rural area...

Heavy and clunky, but every hardware store in the US has the tank!