The listing title is incorrect, this is not a dual-flush. I did not purchase this for the dual flush because it is not. What it is, however, is a high-quality toilet, with an excellent flush system, that was the perfect size for my very tiny bathroom. Toto is a great brand and the round front toilet has a very narrow tank that comes with a right- or left-hand flush handle, depending on the space you have. Toilet arrived in two parts, very well packed.