ResOne Heavy Duty Steel Oxygen Tank Wrench 5 pack - Fits CGA-870 Post Valves - Medical Oxygen Accessories Key Tool for Oxygen Tanks

Bought these to use instead of the cheap plastic ones. These work very well.

My MIL came home from the hospital a few weeks ago and is now on oxygen permanently. The oxygen supply company left us with a few bottles and a very flimsy plastic tank wrench. I wanted to make sure we had spares that wouldn’t break, and these fit the bill. They’re solid steel, sturdy, and feel like they’ll last forever. The five-pack is great, since we can stash extras in different places and always have one nearby. Overall, this is a reliable set of wrenches that gives peace of mind and feels far better than the cheap plastic version we started with.

Fantastic buy. Cost a little more than the plastic ones, but I know these will last a lifetime. In a four year period I've already burned through at least a half dozen.

Very steady, I bought because I broke the plastic ones. These are very long lasting

Good quality good value came right away

Purchased for personal use as an EMT in a volunteer position. I tied a length of paracord to one so I could anchor it to a bottle. Very solid, and I’m not worried about losing one.

They worked perfectly. You have to try them to really appreciate them 😁

I was a bit concerned one of the plastic handles slipping when I needed it the most so I purchased these. Works great and I am not worried about it breaking or the hole getting too big to turn off the tank.