Best Price Guarantee
30-day return policy
Free shipping on orders over €79
Free Personal Consultation
Installation Service
Best Price Guarantee
30-day return policy
Free shipping on orders over €79
Free Personal Consultation
Installation Service










Your benefits at a glance
The H.Preiss WOW Direct Flow Reverse Osmosis System stands for powerful water treatment with a modern design. Thanks to direct-flow technology, tap water is filtered without intermediate storage and is immediately available fresh. The system delivers up to 1.8 liters of osmosis water per minute and is ideal for daily use – for drinking, cooking, or for tea, coffee, and shakes.
The system was developed for households that value high water quality, comfort, and sustainability. Thanks to intelligent control, automatic filter monitoring, and energy-efficient technology, the system integrates seamlessly into daily life and provides crystal-clear drinking water directly from the kitchen tap at all times.
Also available in a combi-package with aquaSpin 3.8 and HELIO module
With the aquaSpin Activator 3.8, your filtered water is structured and refined, and then passed through the Helio module. This module is designed to harmonize electromagnetic environmental influences and complements the water refinement.
The WOW Direct Flow system operates with a 7-stage water treatment system that combines mechanical pre-filtration, molecular purification, and physical water treatment.
First, tap water is purified by several pre-filters that reduce particles, chlorine, and chemical contaminants. This is followed by the actual reverse osmosis filtration, where the finest dissolved substances are retained by a membrane. Afterward, the water is sensorially refined and physically structured by additional modules.
Thanks to direct-flow technology, water is treated directly at the point of dispensing. A storage tank is not required, ensuring that fresh water is always available. Integrated sensors continuously monitor water quality and the condition of the filters.
After the actual filtration, the water passes through the aquaSpin 3.8. Here, the water is physically structured, creating a hexagonal molecular structure. The goal is to give the filtered water a softer sensory quality and a particularly pleasant taste.
The integrated HELIO module is a maintenance-free element designed for modern living and working environments – for example, near WLAN routers, power lines, or electronic devices.
It is based on a special combination of natural materials, arranged according to a structural principle researched in Russia. The module's goal is to support a balanced environment and promote the connection between modern technology and natural harmony.
Additionally for combi-package:
The system treats tap water through multi-stage filtration and a powerful 600 GPD reverse osmosis membrane. This reduces dissolved solids, particles, and chemical residues, resulting in particularly clear and neutral-tasting drinking water.
The combination of pre-filtration, activated carbon, and reverse osmosis membrane reduces, among other things:
Yes, partially.
The integrated polyphosphate filter helps to reduce water hardness. This can reduce limescale formation in household appliances and at the same time improve the taste of beverages such as tea or coffee.
For water hardnesses above 20 °dH, an additional limescale pre-filter is recommended.
The tap water first passes through a sediment filter, which removes coarse particles such as sand, rust, sludge, and other suspended solids from the water. This first purification stage protects the subsequent filter elements and ensures stable filtration.
In the next step, the activated carbon filter reduces chlorine, organic compounds, and various chemical residues. At the same time, this stage significantly improves the odor and taste of the water.
The integrated polyphosphate component can contribute to reducing water hardness. This reduces limescale formation and protects household appliances. In addition, the taste of hot beverages such as coffee or tea can improve.
At the heart of the system is a powerful 600 GPD reverse osmosis membrane. Here, water is pressed under pressure through a semi-permeable membrane. The finest dissolved solids are retained and discharged via wastewater, while purified water is passed on.
After the membrane, the water is again passed over an activated carbon block. This stage removes possible residual odors and ensures a particularly neutral and clear taste.
The filtered water then passes through the aquaSpin Activator 3.8. The water is physically structured, which is intended to create a hexagonal water structure. This can influence the sensory perception of the water and contribute to a softer taste.
In the final stage, the water is passed through a module that is intended to harmonize electromagnetic environmental influences. This module complements the water treatment and ensures a complete water experience until it is drawn from the tap.
The WOW filter system is installed at the water connection where you want to draw water – usually in the kitchen.
For installation, you only need a cold water connection, an electrical outlet, sufficient space for the filter, and a wastewater siphon.
You can generally install your WOW system yourself. However, we recommend professional installation by our assembly service. This way, you ensure that everything is optimally connected – and you also receive a warranty on the installation.
You can easily arrange your installation appointment by phone:
📞 🇩🇪: +49 (0)8093 606 9870
📞 🇨🇭: +41 415 623 260
We recommend changing the filter system of your H.Preiss WOW after approx. 9,000 liters or every 12 months.
You only need to change the membranes every 3 years. A modern LCD display conveniently shows you the filter change and membrane status.
The replacement filter for your H.Preiss WOW is available for as little as €119,-.
The high-quality membrane with up to 600 GPD is available for €199,-.
Everything you need for your next filter change can be found here.
Changing the filter is uncomplicated and takes only a few minutes. Thanks to the practical bayonet lock, you don't need any tools or special knowledge.
With our step-by-step instructions, you can easily do the change yourself:
Change CF replacement filter:
Watch instructions on YouTube
Change RO membrane
Would you prefer to leave the filter change to a professional? Our maintenance and installation service will gladly take care of this task for you.
You can easily arrange an appointment for your filter change by phone:
📞 🇩🇪: +49 (0)8093 606 9870
📞 🇨🇭: +41 415 623 260
aquaSpin technology complements the system's filtration with physical water treatment. Through a special vortex structure, the filtered water is additionally moved and structured immediately before dispensing.
The aim of this stage is to give the water a natural dynamism and a particularly soft, fresh taste.
aquaSpin technology works with a targeted vortex movement of water. This creates a physical flow dynamic that is reminiscent of natural water movements in springs or mountain streams.
This process is intended to harmonize water and the minerals it contains. The water gains a finer structure and can therefore be perceived sensorially as particularly fresh, soft, and vibrant.
The aquaSpin 3.8 works completely without electricity or electronic components. Structuring is achieved purely through physical principles of water movement.
This makes the system maintenance-free, durable, and energy-independent. Made from high-quality materials and developed for continuous use, aquaSpin complements modern water filter systems with a sustainable form of water refinement.
According to the provider, structured water by aquaSpin can have various positive properties. These include, among others:
Note: These statements are based on the manufacturer's claims regarding water structuring and are not conclusively scientifically confirmed.