o-ring

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  1. Jotel me this

    What size o-ring would this be?

    I have two o-rings, one broke and needs to be replaced. It goes to a small random, older water pipe connector that you cant buy in store so I cant look up a manual . How would someone measure the size of an o-ring for a replacement o-ring? I dont own a caliper and even if I did, wouldnt the...