: My main concern is a one flush toilet. Which is best the toto ultramax gravity or a pressure assisted toilet? If the PA tiolet is the way to go suggest a model. Needing white in color. thank Neil

Neil,
Those two are so close, that's it's almost a toss-up. The slightest edge most of the time would go to the PA. There are low water pressure situations, where the Power gravity would be best.
I have used both in commercial buildings.
I have been using Toto the most.
Terry