I purchased a plugin cord, it comes with a box you must connect your wiring, I ended hard wiring and not needing the plug.
I also bought a food disposal tube, the one that comes on the Bosch is ling enough, so did not need.
What I did use was the rubber step up to attach the Bosch hose to my Kenmore Disposal.
Wanted to have all the parts for my install. Took back what I didn't use.