[Erics75218]

I got myself a new one of these, since the one on my stock slave is totally destroyed. The one I bought seems fine, it's aluminum so I wont over tighten it, but I'm not sure what the little o-ring is for? Maybe it goes inside the threads where the bleeder nipple goes to give a nice cushy area for it to set against?

I thought maybe it should be stretched out above the threads on the nipple, and I did that but it seemed to serve no purpose. It didn't close any gap or help in any way.