I am in need of an OMP check valve. This is the one that screws into the rotor housing to feed oil to the apex seals. It has a vacuum fitting on the top. A good one will pass air in one direction only. Anyone have one of these they don't plan on using I would be deeply appreciative. Mark S. -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html