7381983-400.0070AP - 2PC Champion Universal Flush Valve

This looks like the original. It isn't the same build. You have to pull the tank to replace it. Non of the parts are interchangable from the original. The 4 inch seal isn't flexable, it's already as though it 5 years old. If that is an improvement over the seals that form blisters and caused the leaks in the first place. Never in my life have I had a toilet that needed rubber seals replaced 2 times a year.

Everything was has described

Used the bigger flush valve

Order was fast and accurate.