Features and Benefits:
STW.6 Series tank washing nozzle is ideal for efficient washing
  for small ships.
Can be fixed with 15 or 21 full cone nozzles and working pressure
  It can go up to 10bar
STW.6 Series nozzle has a choice of 15 or 21 solid cone nozzles
  can be sprayed onto the entire interior surface with a high pressure
  up to 10 bar.
This design can be threaded through the standard small muzzle.
  Mounted on automatic bucket washer. largest nozzle
  35 mm diameter, 16 mm neck that drains water when cleaned.
Stainless steel construction provides maximum corrosion resistance.