This Safe-T-Link SwiveLink 60in quick disconnect gas appliance hose features durable welded fitting connections and stainless steel braid construction with an extruded coating for protection flexibility and longevity.-4C-60S Safe-T-Link 60in SwiveLink Quick Disconnect Gas Appliance Connector 1/2in NPT - The quick disconnect fitting acts as a shut-off valve when the plug and socket are removed from the appliance while the SwiveLink ends enable maximum clearance from the wall will not lock up and enable stress-free and torque-free motion for long life..