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Rio Grande W-Flow

(1 customer review)

MSRP: $44,999.00


Our Rio Grande products are the result of a long development process. This model is the perfect combination of a well-equipped hot tub and a swimming pool used as a “fitness machine” for a complete workout. The interior design of the hydromassage area is identical to the ergonomic layout of the popular Wellis Malaga pool. In addition to the water fountain nozzle, it is also equipped with 3 illuminated fountains, which create a relaxing atmosphere with their visual effect. Due to the 40 hydro massage jets, bathers can have the best possible massage experience, while superfine filter inserts keep the water in the hot tub crystal clear. The swimming part of the swim spa, equipped with a counter-current system, has been completely redesigned. The inner width is almost 2 meters; its length is 314 cm.

Currently out of stock online, but find a Wellis Hot Tub Dealer near you to find one in a local showroom!

SKU: WU00034 Categories: ,

Key technology of the 21st century

Wellis spas combine the latest technical innovations with exceptional style.
Wellis Hot Tubs
Smartphone™ app with WiFi

Smartphone™ app with WiFi

Our in.touch 2™ is a smart control that can be installed in the hot tub for smart devices Hot tubs equipped with the in.touch 2™ system provide remote access via connection to your home’s Wi-Fi network. After registration, you can easily track all error messages from Wellis hot tub. This way, you can spot any product malfunctions that arise.

Clear Water

Energy-saving W-EC circulating pump (0.25 kW)

Very low power consumption (0.25 kW/h) water circulating pump. Its low power consumption, long life, and quiet operation make it environmentally friendly and cost-effective.

Wellis Hot Tubs


Aromatherapy fragrances and essential oils are for pampering the soul and the body. Elements of the therapy include inhalation, aromatherapy bath, and massage with essential oils – you can enjoy all of them in Wellis spas, which combine a hydrotherapy experience and the power of your favorite fragrances.

Wellis Hot Tubs
Scandinavian Insulation

Scandinavian insulation

The following insulations are available for our pools, thanks to which the water maintains the desired temperature for a long time. Standard insulation: 0.4 in, polyfoam insulation on the side cover and the subfloor. Scandinavian insulation: 1.4 in polyfoam insulation on the side cover and the subfloor.

Wellis Hot Tubs

UV-C water sanitizer

The UV-C system from Wellis revolutionizes the sanitizing of hot tub water. It is lightweight, compact, and very effective. With a negligible amount of power consumption and quiet, safe, and automatic operation, it treats the water in the hot tub several times a day. It provides you and your family with crystal clear, natural quality bathwater while reducing the need for use of water treatment agents to a minimum.

Exclusive color therapy lighting

The exclusive color therapy lighting, which is a direct underwater mood lighting built into the sidewall of the hot tub, consists of 10-20 LEDs, depending on the type of hot tub, which are illuminated in harmony with the standard underwater color therapy lighting if installed in the hot tub.

Sound system

Aquasol™ Pro 4.1 Sound System

4-channel amplifier with a Bluetooth receiver, Waterproof controller within the spa cabinet, Subwoofer (100 W), 4 built-in speakers


10 Year warranty
on the shell structure

5 Year warranty
for engineered parts

Product specifications

Comfort Solutions
Hydromassage pump

2 pcs 3 HP single speed, 3 pcs 3 HP counter-current (LX) pumps

Premium solutions

Smartphone™ app with WiFi, Aromatherapy, Heat exchange pereparation, Swimming stick, Thermo cover

Sound system

Aquasoul™ Pro 4.1 circle flat sound system

Technical Specification
Control panel

2 pcs Smart Touch (K-1000)


Stainless steel

Heating unit

2 × 4 kW

Hydromassage pump

2 pcs 3 HP single speed, 3 pcs 3 HP counter-current (LX) pumps


Polyfoam 1.4 in/0.4 in

Power requirement

240V 60Hz 42A (hot tub) / 24 V 60Hz 53A (swim spa)



Side cover

HorizontSide™ or semi-inground UV-proof wood textured plastic

Water filtering

2 pcs UV-C water sanitizer, 3 pcs Superfine filter cartridge, Ozone generator


19.7 x 7.7 x 4.8 ft

Water circulation

1 pc 1.25 HP water circulating pump, Energy-saving W-EC circulating pump (0.25 kW)

Amount of water

1748 gallons

Net weight

3043 lbs

Reclining / Sitting places

1 reclining place / 5 sitting places

Total Number of Jets

41 + W-Flow System

Waterfall / fountain jets

1 pc waterfall, 3 × 3 pcs lighting laminar fountain jets

Other Features
Acrylic color

Sterling Silver

Cabinet colors

Brown, Grey

Color-therapy lighting

16 + 18 exclusive LED lights, Iilluminated controls

Insulation type

Scandinavian insulation (1.4 in) FREE for limited stock only, Standard insulation (0.4 in) FREE


In a traditional swim spa, the user has to switch on/off the pumps manually for finding the proper water flow which fits their fitness level. The Amazon swim spa is equipped with brand new swim software. Combining this and the new W-flow system the Amazon became a professional training appliance. The user can choose six-speed levels from the slowest, most comfortable „floating” to the hardest exercise. Similarly to a modern treadmill, you can predefine the swimming speeds one after another, so you can insert slower stages between the swimming sprints. The flow rate can be adjusted 0.4-2.5 km / h.
  • It can deliver twice as much water against traditional types of 180 m3/h.
  • The width of the water flow is only 50-60 cm.
  • The difference between water flow directions and the centerline of the spa is 0° therefore swimming is perfectly balanced.
  • Mechanical elements are separated from the hydro-space, so any mechanical repairs can be done without sluicing the water.
  • The heat pump connection in the swim spa is fixed and equipped with In.Grid system – consequently, the heating cost can be reduced to one-third of the electrical heating.
  • Both the massage and the swim half can be separately controlled with the in.touch 2 application.
  • Self-drain function – the swim half can be drained by the circulation pump: 10 m3 in 33 mins.


Learn more about the newest innovation of Wellis! Thanks to the several training sessions it is suitable for professional swimmers and beginners too. You can experience endless swimming with this new fitness machine. It’s like having your own coach to watch over you. The training session can be customized by setting flow intensities, durations, and color indicators. Before choosing a training drill, we recommend adjusting the parameters. Touch the settings icon on the right icon wheel. From there, you can access 6 different parameters. Choose from the following programs:
  • Endurance: A swimming workout executed at a constant intensity for the entire set duration.
  • Lap: A swimming workout executed at high and low-intensity intervals of equal step time.
  • Transition: A series of equal steps at random intensities.
  • Cardio: A swimming workout executed at two successive steps at high intensity for one step at low intensity.
  • Power: A pyramid program where the intensity will progressively increase until a maximum intensity level is reached. It will then decrease progressively to end at low intensity.
  • Personalized: You can create custom workouts.
The Danube swim spa is also available in a semi-recessed design, which allows the pool to be sunk into the ground without a concrete base.
* Our Swim Spas are delivered exclusively with standard or scandinavian insulation!

1 review for Rio Grande W-Flow

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  1. The best time is what we spend in our spa with my family. This Rio grande is a gamechanger on the market. Until my husband swimming we can enjoy the spa with my kids.Because of this swim spa, we have a lots of fun together.
    Perfect quality, easy maintenance, so many memorable moments, what else do we need?!

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