as shown to this end the adapter 133 can move up and down with the clamp 136 sliding up and down the overflow tube until the clamp 136 is tightened as shown attached to the adapter 133 is a gasket 139 the gasket 139 is configured to be compatible with the flush orifice 106 such that it can mate with the junction forming a seal between the gasket 139 and the flush orifice 106 also the gasket 139 is attached to the bottom of the adapter 133 in such a manner that a seal is formed at the junction between the adapter 133 and the gasket 139 the adapter 133 may be viewed as a basket that includes a flush orifice 143 that is compatible with various flush mechanisms such as dual flush devices siphonic flush valves electronically operated dual flush valves or other flush mechanisms although the following discussion mentions dual flush mechanisms it is understood that the adapter 133 is not limited for use with such dual flush mechanisms and that other flush mechanisms may be mated with the adaptor 133 as desired the adapter 133 is configured to mate with a flush mechanism such as a dual flush canister so that the dual flush canister can open or close the flush orifice 143 to implement a flush of a toilet to this end two different flushes may be implemented one uses a minimum amount of water.