AJTIII, I was refering to the AWS windreel, apparently there are two different models offered one with the fan mounted on the combine and one that mounts on the header. I too have a johnson dust diverter on my 9600 but have had less than satisfactory results with it. I don't feel like it was worth the money spent, however I purchased it about the second year they manufactured them. maybe they have made some improvements with the system I don't know, but If I were to do it again I would probably look at another brand or do nothing at all. Don't get me wrong it does some good, but the header creates alot of dust and all the vacuum in the world won't get the dust removed. I have probably a few thousand hours of use on it (used it on at least two different combines). i just don't see enough results to justify the purchase price. If your happy with it then I'm happy for you. I wished I felt the same way about mine. Thanks for the reply.