This purchase is for approximately 425grms of CO2 and the service of refilling the empty cylinder supplied by yourself. The cylinder will not be filled by the original trademark holder but by a third party which has no economic connection with the trademark holder which may be printed on the original label, cylinder or even engraved on the cylinder. You also have the option to exchange the empty CO2 cylinder with one filled by the trademark holder by taking the empty to the trademark holder’s authorized outlet.