Product review (4 stars): Fits well, does a good job
Our old splash guard had gotten loose and was an annoyance.  I tried to get a replacement cheaply, but the one that said "fits most major brands" didn't fit the G.E. so it went back.  This fits perfectly and does a good job keeping the splash in the disposer.  I do find that water doesn't flow quickly through the center hole, it is fairly small and gets blocked by food particles easily.  Being such a close fit it also does a good job dampening the sound of the running disposer.