hello everyone. Anyone know where I can find a 1/4"NPT X 1/4" MFL coupler? The fittings I have are all 1/4" NPT and didn’t realize the robinair has 1/4" MFL. Thanks everyone 
I don’t think there is such a beast. That fitting would probably need to be custom made. What you should to is take off the factory fitting entirely and replace it with a new “o-ring boss” fitting with the proper 1/4" female NPT that you want. I did the same thing. You can find the required fitting at any decent industrial hose shop. Here is a picture:

I don’t think there is such a beast. That fitting would probably need to be custom made. What you should to is take off the factory fitting entirely and replace it with a new “o-ring boss” fitting with the proper 1/4" female NPT that you want. I did the same thing. You can find the required fitting at any decent industrial hose shop. Here is a picture:

go to any specialized fitting store, mine like sales safety equipment and industrial fittings, it took me a little to find a place that sales them, if you can’t find them PM me and I would be willing to send you some
Thanks for the info fellas. Dual Twill, I may just take you up on that offer if my search doesn’t go so well. Now I have another question as I don’t have the pump in front of me. What size is the thread of the fitting that attaches to pump body? Is it a 1inch NPT? Again, I appreciate your help.
This is how I run my pumps


Can you tell I just got done sanding a ton of bondo 
I go from the pump to my pressure pot
the fittings I use are like $2 for the fitting that hooks from my pump to the “T” that holds my vacuum gauge
Pictures speak louder than words. Dual Twill, that is the exact setup that I’m looking to make. Can you give me some specs on that the fitting that goes from the pump to the T? Thanks brother! 
I am by far not a fitting expert but what you described in your first post is exactly what you need. It is a female MFL to a male NPT. I don’t the exact size. The fitting wobbles in the middle until it is fully attached. You can see in the middle of the fitting it looks like it would seperate but it is 1pc. I wish I could describe it better.
I will stop at the fitting store and see if I can get you the exact description of what it is
Anyone looking for fittings, oven thermonamers, pumps and anything industrial hardware, Google:
MacMaster-Carr
or
Grangiers
or in So. Calif. area, check out MacFadden-Dale hardware (not the cheapest, but they have everything).
I went and bought another one and here is what the reciept said. Dont mind me being shaky
STR, MP x FPX, 1/4 MPT, 1/4 FPX


Thank you so much for all your efforts! That is exactly what is needed. I think I can find that piece locally since I have the info you gave. Hope I can return the favor someday.
Brian
Those look like standard hydraulic fittings, If you live in or near a rural area you can probably get them at TSC or some other tractor or agricultural place.