What size/type is this hose end?

[Big_Mark]

Hi gang,

I have finally rewired my a/c pump to an in-cab switch so I can repurpose my unused a/c pump for on board air.

The next thing I need to do is plumb in a hose from the output port on the a/c pump. which will either be plugged into an auxiliary air tank (under the bed I think) or directly to a hose to fill my tires after wheeling.

 

Unfortunately, I "cleaned up" the stock hose so now I either need to replace it with a "new to me" one (junk yard run) or, better yet have a custom hose/pipe made so I can bolt on regular air hose couplers.

Can anyone tell me what hose fitting size and type is used on the circled port below?

 

 

Thanks!