A whirlpool (100 *) equipped with jet delivery elements including a device (200 *) for the production of an air / water mixture jet, said device (200 *) being fixed to a wall (WL * ) of said bathtub (100 *) itself； said bathtub (100 *) being provided with an opening formed in the wall (WL *) to which said device (200 *) is associated, the device being provided with a diffuser element (27 *) ending with an outlet mouth (27D *) of an air / water mixture jet outlet into the bathtub (100 *) itself； characterized in that said opening is a slot (300 *), wherein said outlet mouth (27D *) is located on said slot (300 *) so that the outline of said outlet mouth (27D *) itself coincides with the contour of said groove (300 *)； and said outlet mouth (27D *) of said diffuser element (27 *) resting directly on said slot (300 *) created directly in said wall (WL *) of said bathtub (100 *)； and because all the jet delivery elements and all the elements that attach the device (200 *) to the wall (WL *) are arranged outside an internal surface (φ *) of the wall (WL *) itself .Una bañera de hidromasaje (100*) dotada con elementos de entrega de chorro que incluyen un dispositivo (200*) para la producción de un chorro de mezcla de aire/agua, dicho dispositivo (200*) estando fijada a una pared (WL*) de dicha bañera (100*) en sí misma； dicha bañera (100*) estando dotada con una abertura formada en la pared (WL*) a la que se asocia dicho dispositivo (200*), el dispositivo estando dotado con un elemento difusor (27*) que termina con una boca de salida (27D*) de una salida de chorro de mezcla de aire/agua hacia el interior de la bañera (100*) en sí misma； caracterizada por que dicha abertura es una ranura (300*), en donde dicha boca de salida (27D*) está ubicada sobre dicha ranura (300*) de modo que el contorno de dicha boca de salida (27D*) en sí misma coincida con el contorno de dicha ranura (300*)； y dicha boca de salida (27D*) de dicho elemento difusor (27*) reposando directamente sobre
