The 2.57 X 1.78 can be hard to find at most walk in stores, in the US (at least near me). I haven’t used one yet, but a standard .101″ X .70″ oring is easy to find and looks to be the same thing (using my calibrated eyeballs, setting one on top the other) .
The 2.57 X 1.78 can be hard to find at most walk in stores, in the US (at least near me). I haven’t used one yet, but a standard .101″ X .70″ oring is easy to find and looks to be the same thing (using my calibrated eyeballs, setting one on top the other) .