21-1/2" long propane hose and regulator assembly. Hose has a female flare connector fitting which attaches to a male fitting at the grill manifold or bulkhead and a large hand nut for common standard propane tank connection. "Overall" length of the assembly is 21-1/2",(including the regulator, hose and manifold connector). Genuine Weber Part.  No Longer Available, See Part 65941.