Genuine Water Ridge A700257-GBG1 Dual Flush Valve. This Flush Valve Comes With Mounting Hardware, And Gasket. This Is The Only Blue And Yellow Flush Valve Water Ridge Makes. This is the new style valve. It will be shorter if you have the old style with the blue ring around the top. If you have the old style you will need to replace the flush button with the new style push button. Other part numbers are A700257GBG1, 700257-GBG1, A700257, 700257.