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Danube W-Flow

(2 customer reviews)

MSRP: $35,999.00


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Captivating solutions await you in our Danube swim spa product line. Our Danube W-Flow model combines unique training solutions with individual settings to guarantee the most favourable swimming programme. Our Danube product is equipped with two seats, so you no longer have to choose between the perfect massage experience and an unforgettable swimming programme. As a unique development, the filter compartment was placed at the end of the pool area, which increased the swimming area by more than 50 cm. Double-sided illuminated fountains and a semi-cabinet design await you in the Danube W-Flow swim spa!

SKU: WU00030 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.

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

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

Premium solutions

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

Sound system

Aquasoul™ Pro 4.1 circle flat sound system

Technical Specification
Control panel

Smart Touch (K-1000)


Stainless steel

Heating unit

4 kW

Hydromassage pump

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


Polyfoam 1.4 in/0.4 in

Power requirement

240V 60Hz 60A



Side cover

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

Water circulation

1 pc 1.25 HP water circulating pump

Water filtering

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


14.8 x 7.7 x 4.8 ft

Amount of water

1562 gallons

Net weight

2309 lbs

Reclining / Sitting places

2 persons

Total Number of Jets

24 + W-Flow System

Waterfall / fountain jets

2 × 3 pcs lighting laminar fountain jets

Other Features
Acrylic color

Sterling Silver

Audio system type

With Audio System (FREE for limited stock only), Without Sound System

Cabinet colors

Black, Brown, Grey

Color-therapy lighting

21 exclusive LED lights, Iilluminated controls

Swim Spa Type

Single Zone Swim Spa


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!

2 reviews for Danube W-Flow

Based on 2 reviews
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1-2 of 2 reviews
  1. I’ve been a triathlonist since 2015 and in winter I used to went to a public bath to swim. Last year I decided to buy a swimspa and I found the best. I feel as I swim in an open water, the best swimming experience. It is so relaxing to have a massage after a long training session. Easy to control the water quality.
    I have never had any problems with the spa even I use it every day.

  2. It was a hard to find the best swimspa which is suit for us, but I finally found. I Choose the Danube from wellisspa because first of all it had the best price on the market, it has many swimming programme from beginner to advance. I can have a special training experience with this swimspa. The main focus was on the training part but I like this double seated solution.
    Thank you Wellisspa to make this great option for swimmers.

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