A sanitary functional unit with a housing releasably fastened to the water outlet of a sanitary outlet fitting, the housing having an outflow-side housing end face with outflow openings. The outflow-side housing end face has at least one slot, opposing longitudinal sides of which form turning engagement surfaces or tool engagement surfaces for a turning tool that is releasably inserted into the slot, and the housing of the functional unit is rotatably held on the water outlet of the outlet fitting and/or the housing end face is mounted rotatably in the housing. Using the turning tool in the slot, a pivotably mounted housing end face in the housing can be easily aligned and/or the turning force required for fitting and removing a screw connection provided between the outer housing periphery and the inner fitting periphery can be conveniently transferred to the housing without requiring special turning tools.