If we had to choose one word that separates Bullfrog Spas from every other hot tub on the market, it would be JetPak. We’re not talking about a science fiction mode of personal transportation. These JetPaks are real, although they are pretty amazing pieces of bio-engineered technology. The JetPak Therapy System helps you design your perfect hot tub experience with a personalized feel. You select your favorite massages. You place them in your favorite seats. You dial in the therapy intensity so it feels best for you.