Jacuzzi is a company that produces whirlpool bathtubs and spas, but 'jacuzzi' now often refers to all products of this type. The company was founded by seven brothers who immigrated from Italy to the United States at the turn of the 20th century and settled in California. They set up an aircraft manufacturing company called Jacuzzi Brothers, but after their brother Giocondo died in a plane crash in 1925, they turned their attention to creating deep well agricultural pumps. In 1948 Candido Jacuzzi developed a submersible bathtub pump for his son, who had arthritis, and the pump was sold a a therapeutic aid. The portable pumps became associated with luxury following promotion from Hollywood stars and in 1968 the first self-contained whirlpool jet-installed bath was launched.