Some facts about high flow air couplers 

Great video Mr. Stearns! I learned something new today thanks to you. I guess we can never stop learning new thinks in our life's journey. I will look into these Stedlin couplers. Thank you for the time in making this video for us.

Good to know . all I ever used was M style plugs been working with air tools over 45 years , all the hype on hi flow is crazy . for home use its crazy a 20 to 30 gallon tank has a 1/4 inch NPT fitting at the tank so going with larger kind of sets a guy back on PSI but gain flow . I turn my tanks down from 150 psi to 120 psi to save wear tear on the electric motor and plastic pistons . if you run a auto shop at home best thing you can do is get a good 80 to 100 gallon tank 3/4 to 1 inch outlet at the tank and use 1/2 inch air lines . but home uses not worth the extra cash your going to spend to gain 1 or 2 cfm .

This is interesting. and revealing.

THANK YOU, FOR THIS VITAL INFORMATION!!!... I'LL SOON BE SWITCHING OUT ALL MY OLD FITTINGS, ASAP!!!

Took me awhile to sort out the words you said .. transcript says Stanley, and Stellar, and Sailing for *STEDLIN!*

I've been asking this question a lot and got many different answers. I was led to believe that the plug is the only part that is highflow and the coupler does nothing different other than accept the high flow plug. You are saying that the coupler itself is responsible for the higher flow rate? What is the purpose of opening the plug internal diameter then?

So I was drinking the high flow kool-aid, Kinda laying off it now, thank you

I was hoping to double my cfm from 12 to 24 , Rats ! Good video . Ill save my money, lol

I appreciate this video VERY much, sir. Can't seem to locate any of those steadler (spelling? ) fittings. Could please point me in the correct direction?

Hallo, what's the brand name and style of that last coupler, the coupler with the 8 high tech polymer balls please and easy push in collar? Is it available for low prices and in a kit with some good plugs on Amazon? Thank you

If you are still using a standard M style plug and only change out your coupler, how are you making a difference? Are you saying the standard couplers have a smaller than .19" hole in them? I would say the high flow "V style" plugs with the mating coupler should still have more flow than the standard M style no matter the coupler???

This is interesting and I already knew that most of the restriction is in the female couplers. But where are the FACTS, i.e. the unbiased, scientific testing, to prove what you are saying about the different ones? I really would like to see it. Also, where are those Stedlin fittings made (i.e. country of origin)?

I don’t trust this video… you seem like a ‘shill’ for the orange Stedlin brand. In other words, there seems to be some bias in this video. Are they paying you?

I am going to have to disagree high flow fittings with higher flow couplers makes a bigger difference in performance