All Valve fittings for compressed gas cylinder excluding liquefied petroleum gas cylinders are categorized under IS 3224. All models and brands that meets IS 3224 standards are required to get ISI Certification before its launch or import to the Indian consumer market. ISI Certificated will be issued to the manufacturer only (not to dealer/trader or distributor) whether manufacturer is in India or in abroad does not matter. Please refer Info section for more details.