Replacement nozzle for EW-DJ40, DJ10. Effective cleaning of your interdental spaces also requires functional nozzles. Over time, they can become clogged due to the lime in the tap water. This affects the functionality of your oral irrigator. Therefore, we recommend replacing your nozzle approximately every 6 months with a new one. Includes 4 differently colored rings for distinguishing the nozzles. 2 pieces per pack.