Bullfrog Spas^® Hot tubs with Jetpaks^® are engineered to use much less plumbing than comparable spas. With less plumbing, this ultra-efficient plumbing system generates less friction, leading to higher pump efficiency and more performance, including plenty of power to run all of the jets at the same time. Enjoy more powerful hydromassage experiences for all spa users without the need to limit flow to certain seats.