I have a gauge and a whip line. Where can I find the adapter fitting at? I can not seem to find just the fitting. Everyone wants to sale me the kit.

 

It's just an A/C adaptor fitting.....you can use just a 45* #4 SAE fitting and remove the valve core if you can't track down the A/C adaptor.

 

I asked the AC guy here at work about the fitting. He told me that the only thing he has is a standard ac connector. The threads do not look the same. Also the stem does not look long enough to stick into the fitting. ??