Short answer: Wellis hot tubs and swim spas are made in Hungary by the European manufacturer Wellis. Sauna Dekor supplies and installs them: site survey, access check, base, delivery, placement, connection and handover. We do not manufacture the shells; warranty on the tub is the manufacturer's.
The Wellis range is grouped into families: the Wellis Life Series Hot Tubs, Wellis CityLife Series Hot Tubs, Wellis Classic Series Hot Tubs, Wellis Plug & Play Hot Tubs, Wellis StreamLife Swim Spas, Wellis Saunas: Finnish and Infrared Cabins, Wellis Hot Tub Accessories and Shading, Wellis Hydromassage Bathtubs, Wellis Water Care Products. Each family page lists its models with seats and jets.
A swim spa is a long hot tub with a counter-current flow, so you swim in place; a hot tub is shorter, with seats and massage jets. Both arrive as a finished shell, so the decisions on site are the base, the access route, the electrical supply and, indoors, the ventilation.
The seat and jet numbers on each model page come from the manufacturer's published product lists. Dimensions, weights and supply figures are given where the manufacturer's model page lists them, and otherwise sent with the technical sheet. See also what a swim spa is and hot tubs and jacuzzis.

Rio Grande W-Flow
Amazonas W-Flow Grand Prix
Amazonas W-Flow
Amazonas Riverjet Life
Danube W-Flow
Danube W-Flow Grand Prix
Danube Riverjet Life
Beach Club Deluxe
Everest Life
Kilimanjaro Life
Elbrus Life
Olympus Life
Atlas Life
Makalu Life