The Promise hot tub is available as a one-pump or two-pump model it delivers exceptional hydrotherapy, especially to the legs. The open, multi-level seating for six features two deep therapy seats, two shallow therapy seats, two side seats and an entry/cool down. With four sets of leg jets, foot jets (and the optional dual geyser jets in the two-pump model), plus intensive back therapy, this is one Promise you’ll never forget! (MicroSilk is available as an option on The Promise one-pump version. It is not available on The Promise two-pump version.)*