not really thinking I had AN16 fittings welded to my water radiator.  was this wrong?  do I need to run braided s/s lines?  $$$   I had just had oil lines made [dash 10's] and wasn't thinking too far ahead I guess.  thought I read tho' that we should always use AN fittings in a/c use.  what hose style is safe and least expensive?     kevin  [my brain's cavitating!]