The invention relates to an actuator for dispensing fluid from a cartridge, the actuator being configured to be moveable within the cartridge along the longitudinal axis of the cartridge and comprising a first radial element configured to face the dispensing opening of the cartridge, a second radial element configured to face in the opposite direction than the first radial element and a connecting element connecting the first and the second radial element and configured to extend along the longitudinal axis of the cartridge.
