1) lpg hose get CSA approved for indoor and ... years 3)Can do OEM Stainless steel flexible gas connector fittings Features: 1) Connectors for indoor ... and won't leak gas if installed incorrectly5) For gas mediums such as city gas, petroleum liquefied gas, natural gas, oil, water. SPECIFICATIONSSIZEID3 ... ,East Europe,West Europe. WORKING MEDIUMScity gas, petroleum liquefied gas, natural gas, oil, water.