... 1) Gas connectors get CSA approved for indoor and outdoor use 2) Original professional manufacturer for 10 years 3)Can do OEM ... gas, petroleum liquefied gas, natural gas, oil, water. Features: 1. Connector for indoor and outdoor gas pipings; 2. High flexibility, withstands corrosion ... install and won't leak gas if installed incorrectly 5. For gas mediums such as city gas, petroleum liquefied gas, ...