Burner bell and silence cap (outer cap + inner cap) are included.
If there is a nozzle needle, it is the new model; if not, it is the old model.
If the flame control shaft is tilted downward, it is the old model; if it is parallel, it is the new model.
The screw sizes are distinctly different.
Old ver. is M10 screw / Latest ver. is M12 screw
Applicable Burners: Svea 123 Old Model & New Model (please select), Optimus 8R, Optimus 99, etc.
Precautions for Use: Due to the nature of self-evaporating burners, the tank must be more than half-filled with fuel to quickly build pressure. Insufficient fuel may result in poor vaporization or internal combustion. Please always keep this in mind.
** Since burners directly preheat the fuel tank (e.g., Svea 123, Forevus, etc.), the heat from the tank can cause the filler port rubber seal to harden quickly, so replace the fuel tank filler rubber frequently.