Freeflow Spas are incredibly durable because the manufacturing process produces a strong unibody (one-piece) hot tub shell, eliminating the need for an internal support frame. By reducing material and labor costs, you can get a premium hot tub experience at a more affordable price. Freeflow Spas are manufactured using rotational molding making them extremely durable and more affordable than acrylic hot tubs. Freeflow Spas are perfect for renters too, because there’s no custom installation required, spas can be filled with a garden hose and plugged directly into any standard 110v outlet.