The devices and methods described, provide for a dual flush device with a handle sleeve with a rotation stop and a lift arm extending through the handle sleeve with a rotation limiting tab on the lift arm to engage the rotation stop to enable the lift arm to rotate in a first direction through a first arc and to rotate in a second direction through a second arc where the first arc is smaller than the second arc. A dual flush device with a lift arm added to conventional toilet will enable the toilet to perform two different flush actions, a small partial flush for liquid waste, and a second, full flush for solid waste.