I quit selling the flapperless toilet when production was moved.
The quality changed, and I was spending too much time fixing them.
Parts are a problem.
Who stocks them?
Not Home Depot.
The original Niagara Flapperless toilet
I went to a Halloween part in the Fall of 2010 and used the new Pegasus flapperless toilet.
It took me a few flushes. I had a problem with bowl rinse.