Fitting for dive shop fill

So is this DIN adapter what I’m looking for ? My guess is this DIN hooks up to the dive shop equipment then I’ll install a Foster Series 2 female quick disconnect that will attach to my Ninja fill fitting. 

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I guess I expected all US Dive shops to have at least one standard fitting for filling SCUBA tanks. In short my question was/is...

What is that fitting? 

My guess is for what I need is a DIN300 fitting. The company I work for carries Foster fittings. So once I know what the dive shops use to fill SCUBA tanks. I can get all the others parts to hook up to my Ninja tank. 

Im just going to go to the shop tomorrow and talk to them in person. 

Thanks 
 
These are pictures of the valve and Din fitting on my tank, the Din fitting unscrews from the tank.

The Din fitting has a foster fitting on it for connecting a fill hose to your airgun.

The Scuba shop just connects to the valve, to fill your tank.

They should have that connection, dont spend any money on fittings that you dont need.

I have no idea what type of fittings are on your Ninja bottle. If the look the same as these you should have no problem getting it filled.
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Don't waste any money before talking to the dive shop. They should be able to fill your bottle with their own gear. The last thing that you need is a male DIN fitting. Have a look at the valve above. It's female, yes? doesn't that mean that the shop will be using a male socket to connect to it? Why would you want to connect a male to male adaptor? For the $50 that adaptor costs you could buy a whole fill assembly with gauge, hose and bleed valve, for a usable size tank. If you are going to get your Ninja bottle filled at a dive shop continuously, you are going to get to know them very well as you will only get a few gun top-ups before needing to refill that tiny bottle. The dive shop should be able to show you the different valve interfaces between scuba ( Din and yoke ) and scba ( CGA 347 ) which will give you a better understanding of things.