FillPrice in USDComment 12L Air4 15L Air5 Twinset Air8 12L up to EAN326 12L up to EAN507 12L up to 99% O220150 bar 6L up to EAN504 6L up to 99%O210150 bar Twinset up to EAN3210 Helium0.14/L Argon0.10/L150 bar max