The present invention relates to a spray mouthpiece arranged on the outer free end of a spray tube. The mouthpiece is adapted by means of intersecting flow passages to atomize liquid which is fed to the spray tube under pressure. The arrangement according to the invention comprises an elongated sleeve which is adapted to be carefully placed on the free end of the spray tube. The sleeve is designed with an end face on which is a centrally located mouthpiece opening. In the sleeve is a cylindrical body connecting to the end face. The body has grooves with which the sleeve forms at least two ducts communicating with the tube. From the tube end, the ducts run approximately axially up to the end face. By means of the intersecting flow passages formed on the end face of the body, the ducts are connected to a chamber that connects to the mouthpiece opening.