Halcyon Single Argon Strap
This is an odd one. Halcyon sells the argon system as 2 straps but strangely, we only have one in stock. Which works just fine. Add a bungee to wrap around the valve of your tank to eliminate the tank from slipping out. The bungee would be attached to your backplate. This is the way it was done before companies started making argon holders.