Source for o-ring to fit i200c

[MudBug]

Does anyone have a source for the o-ring to fit a AquaLung i200C dive computer?
I found the measurements on another post on this board but am having difficulty finding a vendor online with that size.

The size is 27.5mm(ID) x 1.2mm (cs)

Thank you.

 

[Aquaman!]

Wondering the same thing. 27.5 is about 1"
We also need to know the correct durometer .
My guess is that this is a custom oring.

 

[MudBug]

Wondering the same thing. 27.5 is about 1"
We also need to know the correct durometer .
My guess is that this is a custom oring.

Durometer is 70.
As competitive as this market is, I'm willing to bet the designers wanted something off the shelf in order to keep costs down. Custom costs.

 

[MudBug]

I may have to break out my micrometer and pop the back off of my AquaLung i200C and make some measurements.

 

[deeno]

Just in case anyone comes back down the road and looks,

I went ahead and bought this: 27 x 1.2mm Metric Buna O-rings 27 x 1.2mm Minimum 25 pcs

since it is the closest thing I could find to the official oring size in the US. In hand, I could not measure a difference in size between my existing oring and the 27x1.2mm ones so I went for it.

About 20 dives later (~6months), the computer is still fine, so I would say this is a good fit for those who are in the US and cannot find a source for the official sized oring

 

[happy-diver]

Cool thanks man
and when you consider a half millimetre difference over a lets say ninety millimetre circumference
there was never an issue in the first place

Reading those Oring measurements may seem large, where the difference can be quite negligible