What size O rings do i need?

[Bench74]

Hi.
Have an ava8 gt pen machine and need some o rings. Are they standard on pen machines or do I need specific ones? Been googling and can't find any info. There's a large and a small one, very thin.
Thanks.

 

[Patch72]

Hi.
Have an ava8 gt pen machine and need some o rings. Are they standard on pen machines or do I need specific ones? Been googling and can't find any info. There's a large and a small one, very thin.
Thanks.

Get in contact with the pen maker or the company you brought it off for that mate,should have come with spares