Product review (4 stars): Poorly designed trap...
The rubber trap that is not removable on the model that I bought ( was not aware of this feature) is a bad design. It does not allow the water to flow through properly and it appears that the sink is clogged when, in actuality, the water is just backing up because of this poorly designed feature. I used the old removable trap from previous insinkerator and it holds that trap of the new disposal open so that the water can go down the drain. Also, it is a little noisier than I anticipated..