Genuine Fluidmaster 550DFRK Duo Flush Conversion System.
- Converts your existing toilet to Dual Flush Technology
- Uses up to 45% less water
- Easy to install, Snap-On swivel mount design
- Retrofits to any 2” flush valve toilet
- Includes: 400AH PerforMAX Fill Valve
- Fully adjustable half and full flush, lever included
- Easy adjust dials allow you to set the water level without removing the valve
