YT930#WH - Dual Flush Round Push Button Plate for Select DuoFit In-Wall Tank Unit - White MatteToto YT930#WH Dual Flush Round Push Button Plate for Select DuoFit In Wall Tank Unit White Matte The TOTO Dual Button Push Plate for DuoFit In Wall Tank System allows you to control the water volume of the flush with a simple touch of a button. The rectangular push plate has a sleek and modern design that coordinates seamlessly with the wall hung toilet system. The button works with TOTO DuoFit WT171M, WT172M, and WT173M in wall tank systems.