Here's the ones Mancini sells. I don't see much difference other than the very tip? Mine were probably generic parts store fittings. I'm ordering the Mancini ones this a.m.
The generic ones should have been fine, and frankly, that is all the Mancini appears. " I don't see much difference other than the very tip? "
Are you talking about the right hand side of the photo of your original? This does not appear normal to me. That is common pipe thread, any of them should look more like the Mancini photo you posted.