For 12g co2 cartridge refill, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 12g co2 cartridge refill has been well received by many customers and enjoyed a good reputation in many countries. fairdale metal tools co.,ltd 12g co2 cartridge refill have characteristic design & practical performance & competitive price, for more information on the 12g co2 cartridge refill, please feel free to contact us.