Thanks for your question Chuck, and we apologize for the delayed response.
This InSinkErator 1470 Disposer Gasket is not the part you'll want for your Pro Essential 2 disposer. Depending on which gasket you're looking to replace you'll want 1 of 3 parts. For the mounting gasket you'll want InSinkErator part #74054, for the Quiet Collar Sink Baffle you'll want parts #'s QCB-AM or 74021A, and for the discharge gasket you'll want part #75499.
We don't currently stock these parts, but we special order for customers on a daily basis, Please gie a member of our Tundra Restaurant Supply team a call at 1-888-388-6372, and we'll be happy to get you the gasket you need.