Hmm, incorrect.

Of course, you can use whichever nozzle you want, but we suggest an ST nozzle in this case.

It creates a small blast pattern, which is good for skinny pieces of fence or rail.
In this case, a large blast pattern, like that created by the XL nozzle, would waste media.

 

Or, watch the nozzle comparison video:

Nozzle Comparison YT