[ PLUMB Works 664-1984 Flush Valve for One-Piece Toilets » Stops intermittent filet running « Fits most 2" one-piece toilets includes: {1} One-piece toilet tank flush naive {1} Rubber flapper with chain Instructions: REMOVAL OF OLD FLUSH VALVE: 1. Shut off water supply and drain tank. Sponge bosom of tank until dry 2. Lift refill fuse from overflow dubs. 3. Disconnect lift wirehair from flush ravel. 4. Loosen resews onv flush valve and remove old gush valve from tank. INSTALLATION OF NEW FLUSH SALVE: 1.