Jacuzzi's expertise was originally in the pumps and jets that provide an un-matched hydrotherapy experience. However, since hyrotherapy does little good unless it is contained within a durable and well designed shell, Jacuzzi has gone to great lengths to provide the best platform for their technology. Jacuzzi has worked with the best manufacturers in the acrylic industry to provide the shell that allows Jacuzzi to offer a "container" worthy of their advanced hydrotherapy apparatus (and warranty it for seven years!).