refrigerant gas R600A,foaming agent,can replace R12 replacement refrigerant gas R600A,foaming agent,can replace R12 Refrigerant R600a, chemical name: isobutane ... negligible GWP. Furthermore, it is part of petrol gas from natural sources.Replace R12ApplicationsDomestic refrigeratorsFreezerBenefitsEnvironment friendlyWorks with the ... ,6 kg/cylinder, 10kg/cylinder11kg/cylinder Refrigerant gas R600a