Difference betwen Toto UltraMax and Ultimate

[hpfish10]

I have these two models installed in my house and they physically look identical. What are the difference? I am told the white fill tube of the Ultramax is higher so it holds more water. Any differences in the fill valve or flap?

 

[Gary Swart]

Go to the home page of this site and follow the link to the toilet comparison section. All of the spec for Toto and most other brands are listed.