Dual flush valve

1.Connector: 59mm(2") for 1pc toilet 59mm(2") for 2pcs toilet 2.Fixed and adjustable overflow pipe for option, Fixed overflow pipe height: As request adjustable overflow pipe height: 220mm-380mm 3.Flush valve height:185mm,suitable For toilet tank height of 220mm-450mm 4. Adjustable partial and full flush can save more water as request 5.Various top push button for selection 6.Metal lock for one piece toilet MODEL:NB202D