Well this is the way that I heard it
The "Dual action agitator" from Sears had the pattend run out on it, once that happened, everyone jumped on board.G.E. changed their design and dumped the filter flo and went down the drain from there, in my humble opinion. The flos' tward the end were having a problem wtih leaking oil into the tub and getting all over your clothes,that is going to leave a mark! I understand that it was quite common. I had some friends of mine that it happened to, they were none to happy about it, esp after the second service call for the same issue.