Product Description Specially utilized in the connection of gas appliance and valve fitted with gas delivery hose at the end. As our latest innovated product, it has several principal features,easy to install and highly flexible. Product Feature Anti-aging, taint-resistant, Stainless steel material. Product Specification/Models Material :SUS304,SUS316L; Quality guarantee:ISO9001 Certification; Test Institute: China Gas Appliances Inspection Center. Application Gas supplying.