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550DFRK Dual Flush Complete System Product DetailsVisit

Dual Flush Complete System

550DFRK Dual Flush Complete System

Upgrade your current toilet to dual flush technology with the Fluidmaster Duo Flush™ System! Proven to use up to 45% less water, the Duo Flush saves more than 15,000 gallons a year!

This complete system comes paired with our PerforMAX® fill valve to ensure consistent flushes every time. The Duo Flush retrofits any 2” flush valve toilets and includes a special tank lever for half and full flushes.

  • Converts your existing toilet to Dual Flush Technology
  • Uses up to 45% less water
  • Fully adjustable full and half flush
  • Retrofits to any 2” toilet
  • Includes high performance fill valve – 2x greater refill rate