A plumbing fitting that includes a housing having an outlet, water being conductible through the outlet from a hose connection to a jet former of the outlet with the aid of a hose. The hose being insertable into an outlet nipple of the hose connection, and the outlet nipple having a groove extending from an opening in which a seal is disposed for the purpose of sealing the housing against the outlet nipple. The groove being at least partially closed by a closing element disposed on an end face of the outlet nipple.