Genuine Roca D2D Spare or replacement push button dual flush. Manufacturer Part Number AH0001800R. This is a genuine Roca replacement D2D Push button for the D2D flush valve fitted to various suites by Roca with standard height cisterns. Often referred to as the new style, the redesigned flush valve top went from plain push rod operated to the new style with screw in rods. Distinctive sun and moon design. 45 mm threaded rods included. Includes screw for installing the valve. Short-design button 40 mm body.