Product review (5 stars): I was hoping to eliminate ground up sterling silver dinnerware in my Waste King 8000 disposer
Bought this item along with the Danco 1051 disposal genie.  I was hoping  to eliminate ground up sterling silver dinnerware in my Waste King 8000 disposer.  I'm am happy to report I was successful.  The stopper is a new design for the original.  It has no perimeter gasket or seal.  The stopper and splash guard seem to work because of precision flat surfaces.  I dropped the stopper in the opening against the splash guard and put 6" of water in the sink.  Came back 10 minutes later and the water was still there.  All I need to know.  The Danco 1051 is a fine piece of engineering.  One little caveat is that it take a minor bit of alteration to fit  the WK 8000.  The diameter of the Danco must be ground to 3.0".  Accomplished with a small orbital hand sander and 80 grit sand paper.  Took about 15 minutes.  Take your time and sand all tips uniformly to the same 3.0" diameter.  You can do it by hand but the plastic is very tough.  Contrary to other comments I found no problem using the Danco in conjunction with the WK splash guard.  Maybe a new WK design but the combination worked perfectly.  By the way at 3.0" the Danco works with or without the WK splash guard in the 8000.