Argon Technical grade 4.8 (99.998%). A weld process gas meeting the requirements of I1 according to ISO14175, for TIG welding of all weldable metals and alloys and MIG welding of Aluminium and other reactive materials. Supplied in a 30 litre Integra® cylinder at 300 bar. Integra® cylinders are safer, smaller and lighter. Featuring an Integrated flow optimiser (IFO) with a quick connector to save you time.