Tank Stopper

A rubber plug or flapper that seals the valve seat between a toilet tank and bowl. Upon flushing a toilet, the tank stopper is lifts to allow water to rush through the flush valve into the bowl.

Related Terms:

  1. Ball Cock
  2. Flush Valve
  3. Flush Valve Seat
  4. Inlet Valve
  5. Shutoff Valve

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