Filter system: Sand Automatic bath filling Automatic bath draining Number of upper hydro jets: 24 Number of lower hydro jets: 16 Hydromassage and colour therapy on seat: (8 opt) Bottom airpool: 24 Seat airpool: (47 opt) Heating system : 3Kw Ozonator: Yes Edge mounted colour therapy LED light Upper colour therapy LED light: opt Lower colour therapy LED light: opt Cushion: opt Fittings for heat exchange: opt Side panels: opt Thermal cover: opt Indoor and Outdoor use