Anderson Metals - 57002-0604 Brass Hose Fitting, Connector, 3/8" Barb x 1/4" Female Pipe

Good quality fittings worked as should would definitely recommend.

Works as intended.

I work at an oil change shop that also does several other preventative maintenance services such as tire rotations. We use a pneumatic impact drill to loosen and tighten the lug nuts on the tires. During one of these services, the connect blew up while I using it and that hose had to be shut off until we could get it repaired. The repair was as easy as cutting off the old fitting, getting a new coupler, and a new fitting (this one). A bit of Teflon tape later and we had a working hose again. It's been working for several months without issue. No leaks, hissing, anything. When nothing is connected on the line, it's silent. This is a good quality product, it shipped out quickly and was exactly what I needed.

Had it not been for the coronavirus making it difficult to go to the local hardware store, I would never have paid so much for this online. It was good quality, no burrs or defects. The price was the only downside.

Cut a 100 ft air hose down to 65 ft and used this connector to put on a male end to plug into the air compressor. Good brass, good pipe threads, a wrap of Teflon tape and then the male end just tightened up easily and no leaks. Didn't even have to bare down on it to get a good seal. A dab of spit on the barbs and it pushed right into the high quality genuine rubber hose. Crimp is holding tight at 120 PSI. Now I just order this type of hardware from Amazon because I am tired of going to Home Depot just to find that they are out of stock or don't even carry what I need. So I'm happy when the part works as it should. Simple things make my day! LOL!

Great fitting allowed me to successfully plumb the chiller into my cold plunge.

Used this to attach to a pressure gauge to monitor fuel pressure on my car. Worked as advertised.

Great quality material and workmanship