We take pride in the fact that our toilets are not only beautiful to look at, they have inner beauty as well. It's there in our high-performance flushing systems, our specially designed trapways... it's there in all the details. People often say, "It's what's inside that counts." We couldn't agree more. Take a look, you'll see for yourself.
Size Matters
1 Flapper Valve Sizes
Fast flush: new wider 3" flush valve is 125% larger than commonly used 2" flush valves.
2 Flapper Size Comparison
1 3/4" For many toilets, this is the maximum size of test material that will pass through their trapways.
2 1/8" Toto 2 1/8" extra-large trapway can easily pass a 2" test ball without clogging. This ball is 33% larger than the USA industry standard.
Technology 
