I looked all over for something that would fit the small red oxygen tanks You can buy at Lowe’s. This company had the lowest cost one. It works great. I was kinda expecting the outlet connection to be 1/4” but it’s much smaller. Just meant I needed smaller tubing, not a big deal. I made my own oxy/acetaline torch with this for about $50 instead of spending $200 on even the cheapest one from harbor freight. Also, it shipped quickly in spite of the pandemic.

I have only used one time so far. It will become one of my tools that I will use during my home brew process.
Seems well made, and Williams Brewing had the best price around.

After seeing numerous videos on hybrid rocket engines I decided I wanted to build one of my own. Me being a kid I didn't do research and prematurely bought a cheap oxygen tank with a left-hand thread. None of my dad's torch nozzles fat on so I needed a cheap left thread nozzle. Upon looking on websites like Amazon I found nozzles over 30 dollars! I had already spent 40 on the project so when I saw this one for 10 dollars cheaper I had to buy it. I was a bit skeptical at first but after receiving it and trying it worked great. Although it may not look like it on the photo you can adjust the airflow which comes in handy. Do be warned though that when high volumes of gas flow through it will start to make a strange noise. No air seems to be escaping so I'm assuming it is something inside rattling. That only happens at 300psi so for other uses it should be fine.