Product review (4 stars): Just what we needed to replace the one that went missing
This sink baffle does indeed muffle the noise of our InSinkErator disposal, so much so that one might wonder whether it it working at all! It doesn't seem to collect icky deposits--I take it that the microbial feature works well. The baffle fits perfectly. The ONLY drawback that I see is that the opening is SO tight that it takes water quite a while to drain through. We have taken to pushing on it slightly with a wooden spoon or the like when trying to let out a quantity of water.
The price was reasonable, the quality seems excellent, and I am entirely satisfied.