Medical Oxygen Pin Index Yoke (CGA-870) to 1/4" male NPT
This is the hard-to-find key to getting oxygen out of those new pin index medical oxygen bottles and into your carefully cleaned and prepared SCUBA tank. Chromed brass body and handle, 200bar pressure rating, with seal included â spares are available separately. Note thereâs no swivel, but this can be achieved along with handy interchangeability using a set of high pressure brass quick connects (listed further on). The hand-tight version makes it a lot easier to get on and off without having to resort to tools (sometimes but not always you can get away with this using the T-handle/standard type). Spare seals are available for $2.50 each. Ships free (or at least, you only pay the maximum shipping once) with any of my other items, so why not check them out. WARNING: messing with high pressure oxygen can result in injury, death and/or generally vast amounts of damage to property and people.  You need to be prepared to accept the risk, design and use your system properly and be aware of the consequences of failure.The "Oxygen Hacker's Companion" (see separate listing) is an excellent resource to help avoid blowing yourself up.