The Spa Trainer by ThermoSpas is a Swim Spa which doubles as an enormous 12 person hot tub. The swim spa allows for swimming in place against a powerful current of water as well as underwater resistance training with attachments that can fully supplement your exercise or strength training regimen. It also has 21-85 powerful jets to sooth and relax anyone with a full body massage. This spa has the luxury of a hot tub and the convenience of a swimming spa and resistance trainer all rolled into one in the comfort of your home. This is ideal for those who love to entertain large crowds while also staying physically in shape.