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 outdoor gas piping2) High flexibility, withstands corrosion, durable, reliable, ... won't leak gas if installed incorrectly5) For gas mediums such as city gas, petroleum liquefied gas, natural gas, oil, water. ...