Svea 123 v. Optimus 99 - Classic Camp Stoves

optimus 123As are the canisters for my old Optimus 721 stove, Gaz Globetrotter stove, and Bluet 200 stove. When canisters become obsolete the stovesBoxed Optimus 123, burner heads are mixed,with rounded end air ports, and squared end air ports. All have Optimus twisted wire chain and Optimus model 8 keys. C1