Until now, none of these Mosmatic fittings existed. I worked closely with Jaime from Mosmatic-US to have these made for us, the discerning pro-sumer. Keep in mind these weren't built to a price point with sacrificed precision. I wanted these T304 stainless fittings at any cost, and my guess is that many of you do too. I get that this is more expensive than brass or Chinese made stainless, but the fit, finish, and precision makes it worth it. What makes these new fittings so special is that they're manufactured in Switzerland with much greater precision than typical fittings.
You would use this specific fitting on a Kobrajet hose or any other 3/8" fitting that's NPT threaded.
All of my new Mosmatic fittings come with a 6-month warranty, but I suspect they'll last for quite a while. These couplers just have a satisfying action to them and even the sound they make sounds stout.
Do keep in mind that these are a consumable. These are like tires that will be susceptible to wear and tear and future replacement. They are just much better than normal.