B50 Alteros regulator. Anyone know the size of the large oring?

B50 Alteros regulator. Anyone know the size of the large oring?

Joined: October 17th, 2016, 7:38 pm

December 29th, 2016, 5:26 pm #1

I think mine broke during installation. I have one spare and want to get some extra spares. One past indicated it was a #118, but measurements indicate it is a #121.
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Joined: October 17th, 2016, 7:38 pm

January 5th, 2017, 12:13 am #2

It is a #118.
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