2 inch or 3 inch fill water hole.,Big flush volume(can more than 2.1L/S),the flush effect is better.

1.2 inch or 3 inch fill water hole.

2.High seal water performance,no leak.

3.Big flush volume(can more than 2.1L/S),the flush effect is better.

4.Adopt dual flush design,the flush water volume of big flush and small flush can be adjusted optionally,can save water source.                  

dual button flush valve 2971