Commitment to the outlet of a sanitary fitting

A commitment to the outlet of a sanitary fitting is proposed. This application includes a water guide with a flow limiter. The flow limiter is arranged in a movable valve member. a second water supply is turned on by the use by lifting the valve member, which is a bypass of the water guide provided with the flow rate limiter. serves one on the outside thereof slidably disposed in the end region of the insert sleeve for lifting the valve member.