Here is a lot of (2) rotameters for a Brother HS-300 or HS-350 wire edm.  I will be listing many boards and parts from Brother machines in the coming weeks.  I repair Brother machines.  I offer unlimited free phone support if you buy a machine from me, and limited support if you buy parts from me.  I buy broken HS-70A machines if they are close by.  I also have a web site.