M20ArC15 weld process gas meeting the requirements of ISO14175:M20, contains 15% Carbon dioxide in Argon. Ideal for MAG welding of carbon steels. Supplied in a 30 litre Integra® cylinder at 300 bar. Integra® cylinders are safer, smaller and lighter. The Integra® cylinder is designed to be used with a choice of Integra® flow optimisers (available separately) which ensure optimum weld results whilst reducing excessive gas usage too.