A sanitary insert (1) includes a housing (8) and a flow guide (4), the housing (8) having a generally cylindrical shape and an inner wall portion thereof has a concavity (3) around its periphery. The flow guide (4) having generally a disc shape with an outer wall portion thereof having a convexity (2), the housing (8) being configured to pivotally secure the flow guide (4) within it by a ball and socket type engagement thereby allowing an articulating movement of the flow guide (4) within the housing (8). The housing (8) being configured to be inserted into a plumbing outflow fitting.