What is the difference in quality, installation, and, flush ability between the one piece and two piece Kathryn toilet?
There is no difference in the quality of the toilets. One piece versus two pieces is a personal preference in the style. There is no difference in the flushing ability as both of the toilets use the Ingenium® flushing system. With a two piece toilet you have an additional step with installation as the tank needs to be bolted to the bowl. Really the only difference is if you like the look of a one piece over a two piece toilet (one piece is slightly smaller). Please let us know if you have any other questions.