·         Do not use fuel cartridge that expose in sun light or store at temperature > 40^oC.

·         Do not use stainless steel fuel cartridge (the head of fuel cartridge may be deformed because it may be refilled many times à which also may be a reason causing fire and explosion).

SUITABLE cartridge Diameter = 65.80 +_ 0.2 mm	NaMilux, ACE, XAX Super Flame, K-One, Blue Star
NOT SUITABLE cartridge Diameter > 67.10 +_ 0.2 mm	Stainless steel fuel cartridge Rusty or deformed fuel cartridge