Welding Gas Bottle to Regulator seal

NOTE! This is a Plastic Ring Seal squashed between Highly Compressed gas bottle and regulator, Welding gas bottles are 200BAR or 2900PSI when Full!
Originals at the store are made of somekind of Light Green Nylon, so Nylon would be best material to print in but i really think any plastic could be used and these are pretty much one time use pieces depending on how far they have been squished.
As its a 3D printed replica i highely advice to check regularly for leaks and never leave the bottle open when NOT in use.
Pretty much same rules as with the original seal and i see no problem using a 3d printed one.

Tested on a full 200bar bottle in PETG and i had no problems on sealing the connection.

Seals for regular Welding Gas Bottles -> Regulator found atlest on Swedish AGA and Finnish Woikoski Bottles

Diameters and measurements as follows (.stl has sizes in its name)

1

10mm inner diameter, 17,5mm outer diameter and 1,5mm thickness

2

12mm inner diameter, 17mm outer diameter and 1,5mm thickness