This Safe-T-Link SwiveLink 48in gas appliance hose features durable welded fitting connections and stainless steel braid construction with an extruded coating for protection flexibility and longevity.-2C-48SK Safe-T-Link 48in SwiveLink Gas Appliance Connector 1/2in NPT with Installation Kit These fittings enable maximum clearance from the wall will not lock up and enable stress-free and torque-free motion for long life. A T&S K model installation kit is also included to make connecting your gas equipment a breeze.