NOTE: THOMAS DUDLEY REGULARLY CHANGES COLOUR OF THESE FLUSH VALVES SO THE UNIT YOU RECEIVE MAY BE BLUE - THIS IS STILL THE SAME PART, JUST DIFFERENT COLOURThomas Dudley Niagara Single or Dual Flush Pneumatic Flush Valve 327628\nThomas Dudley Niagara Single or Dual Flush Replacement Pneumatic Flush Valve For use in Dudley Vantage, Miniflo and Royal Pushflo cisterns\n\nThis is the Thomas Dudley Replacement Pneumatic Niagara Flush Valve, it is the new model and is compatible with both single and dual flush systems depending on setup during installation. It boasts a unique design with bayonet fixings which enables the valve body to be easily removed from the cistern for servicing without the need to disconnect the water supply or dismantle the cistern. As with many Dudley syphons it can be fitted with a Dudley push button or push plate in most concealed cisterns.\n\nFeatures and Benefits of the Thomas Dudley Niagara Pneumatic Flush Valve:\n\n--Dual Flush options: 6/4, 5/3 & 4/2.6 Lit)