[gzig5]

No idea on the diameters. The larger of the two has a geometric cross section, meaning it is not round. I doubt that a standard round o-ring is either going to fit correctly or seal correctly. I don't remember on the smaller one. Good luck though.

 

[2strokecoldsmoke]

That might explain the high price. I was thinking I could source out some Viton o-rings from a supplier I have.
Still want to know the dimensions, though