What adapter?

What adaptor if any would be needed to fill a 74cu ft tank from my local firehouse compressor? Is there a universal adaptor since all Scott tanks are used and filled at the firehouse? IMG_0359.pngThis would be tank and fitting I have.
 
Here’s another Brancato adapter. It’s wrench tight as opposed to the hand tight that CA_Varminter posted. $24 cheaper though.