... design-certified for indoor and outdoor use;9.100% factory gas leak tested;10.High flexibility, withstands corrosion, durable, reliable ... and won't leak gas if installed incorrectly;12. For gas mediums such as city gas, petroleum liquefied gas, natural gas, oil, water; ... 27;14Mainly:South American,North American,Mid East,East Europe,West Europe . Stainless Steel CSA Approved Flexible Gas Hose Connector