Aeron b96 o rings

[muzzie]

I would say very likely, the instructions say back of 180 degrees.
The oring size is given as 14x2, not sure what that means.
When I sent mine off to Magic nine for overhaul it came back with what might be a urethane oring, fatter and much softer.

Thanks Peter
That seems to have done the trick, only problem was that I fired off 70-75 shots and then the last shot expelled all the remaining co2, haven't checked the o ring yet, but not that I'm that bothered as 25 came in the post this morning. Mine are 15x2, it means the inside diameter and the cross section, ie thickness 2mm.
Cheers