Triton Mini O-Ring size

[BreSha6869]

hey all,

Any idea the size of Triton Mino o-rings and where I can buy them? I found base rings at Mangovapes, but $6US each plus shipping is ridiculous.

If am mostly concerned with the base ring as it is similar to that of a Kanger Subtank (I.e. non-standard).

Thanks!