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Thread: O ring durometer rating

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    Shark Zeagle Eagle's Avatar
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    O ring durometer rating

    Does it really matter if I use an o ring with a durometer rating of 70 on a 3000 psi scuba tank? I have been told that you should use an o ring with a durometer rating of 90 on HP ports. How can you tell the difference? Most of the time when I put on a new o ring it's whatever they have on the dive boat.
    --Zeagle Eagle

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    Shark Zeagle Eagle's Avatar
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    The port where I plug my Oceanic wireless pressure transmitter, I assume that's a high pressure port?
    --Zeagle Eagle

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