Restube CO₂ cartridges (16g)

For Restube active, Restube extreme, Restube automatic, Restube lifeguard, Restube basic, Restube swim, Restube classic, and Restube sports (all models except Restube beach). Includes: 16g CO2, Galvanized steel & threaded Green safety clips Meets DIN EN ISO 12402-7 / UL 1191, salt water proof ISI/5503 Austria 11/18 For transport by air follow IATA-rules Not all CO2 Cartridges are a like and we highly recommend only using the Restube spare cartridges.   We know you can find some cheap cartridge alternatives on Amazon, so before you do that, understand this...  The Restube cartridges are made of a high quality galvanized steel, so there is there will be no rust or corrosion. In fact, the galvanized steel we use is 20x more higher strength than the life jacket industry standard.  Cheap Cartridge Warning They frequently do not come fully loaded with 16g, which could be an issue with the Restube to fill.  They are made thicker, making it harder to pull the trigger, and with many ti