Product information

30 UPM socket with 3/8" male thread, for air connection system

The plug and socket fitting portion of couplings 20, 30 and 40 are interchangeable, as are those of the 400, 600 and 800 couplings. This means that a coupling 20 may be connected to a 30 or 40, the only difference being the flow capacity of the couplings.

BSP Thread.


  • Time tested and proven for over 30 years to be precision perfect and leakage free
  • Helps you build efficient air lines everywhere on board


  • Uncompromising standard of quality and flow performance in each and every application