Pressure toilets (also sometimes known as “power flush toilets” and “pressure-assist toilets”) have a pressure vessel inside the tank. The water coming from the mainline to your toilet fills the vessel, where it is pressurized even further with the help of an air valve.
The water is held in the vessel, waiting in the stress of its contained potential energy for the release of the flush valve. When it’s opened, the water is forcefully pushed into the bowl. The pressurized water combines with gravity to powerfully empty the bowl’s contents down the drain.
VMS stocks Flushmate change-out kits for Mansfield, Crane, Eljer, Gerber and complete replacement systems for many other manufacturers.  We also stock individual parts such as; cartridges, upper and lower supplies and other necessary repair parts.