Outer tube:stainless steel (304)
Fitting:brass or stainless steel nut
Screw thread:NPT,BSP
Outer diameter:16.5MM-21.5MM
Inner diameter :12.5MM-16.5MM
Length is according to requirement
The hose can be extensible
Surfacing is cover the yellow PVC hose which have inflaming retarding effect.
OEM is available.
Usable range:uesed in natural gas!
