RO400 Tankless Water Filter Reverse Osmosis
RO400 is a modern, tankless water filter with reverse osmosis that provides clean water on demand, without storage in a tank. The syste Read moreShow less
RO400 is a modern, tankless water filter with reverse osmosis that provides clean water on demand, without storage in a tank. The system combines a compact design, smart control, and water-saving features. It offers 5-stage filtration with a 400 GPD membrane, a backlit display, electronic cartridge lifespan monitoring, and anti-leak protection. The package includes a faucet and installation accessories.
Specifications
- Wysokość wkładu
- 10"
- Alkalizer / ionizer
- No
- Connection size
- 3/8″
- Installation location
- Under sink
- Maximum working temperature
- 38 °C
- Filter media
- Polypropylene
View full specifications
- Membrane capacity
- 400 GPD
- Mineralizer
- No
- Minimum working temperature
- 5 °C
- Model
- WodaRO RO400
- Product type
- Reverse osmosis system
- Pump
- Yes
- Number of filtration stages
- 5 etap
- Tank
- No
- Technology
- Reverse osmosis
- UV stage
- No
Description
RO400 Tankless Water Filter Reverse Osmosis is a modern water filter operating in reverse osmosis technology, designed for convenient access to clean water without storing it in a tank. This compact osmosis filter and efficient reverse osmosis system combines 5-stage filtration, a 400 GPD osmotic membrane, intelligent control, a backlit display, and anti-flood protection. Thanks to its small housing, it saves space in the cabinet, simplifies installation, and provides freshly filtered water on demand.

Modern tankless RO400 water filtration system
RO400 is a compact water treatment system designed for everyday use at home. The device filters water on demand, so it does not require a separate tank for filtered water. It is a convenient solution for people who want to have clean water while keeping more space under the sink.
The entire system is enclosed in a compact housing, which makes the reverse osmosis filter take up little space and work well even where every centimeter of kitchen cabinet space matters. The design has been developed with an emphasis on efficiency, economical operation, and simple use.
Key advantages of the RO400 system
- High flow rate, intelligent control, and energy savings.
- Compact, small housing.
- Simple installation and operation.
- Electronic monitoring of filter element service life.
- Anti-flood system.
- 400 GPD membrane - effective water filtration by reverse osmosis without the need to store it in a separate tank.
- Backlit display for quick device status checking.
- The filter has a dust cover.
- Intelligent software with water-saving technology.
- Standard 10" cartridges fit the system.

Reverse osmosis – effective water purification
The RO400 system improves water quality using reverse osmosis, regarded as one of the most advanced purification methods. The filtration removes 99.99% of contaminants present in water, including mechanical impurities, dissolved compounds, and microorganisms.
Unlike traditional solutions, this water filtration system uses a 400 GPD membrane that operates on demand. This means there is no need to store water in a separate tank, which usually takes up a lot of space in the cabinet. Clean water can be drawn at any time and in any amount, while the device itself remains compact and convenient for everyday use.
Intelligent control and operating safety
RO400 is equipped with intelligent software working with water-saving technology. This solution helps reduce water consumption while supporting stable and efficient device operation.
The system reminds you about the service life of the filter elements, which makes it easier to plan cartridge replacement. The control system also helps extend the life of the membrane and other electrical components responsible for the operation of the device. The backlit display allows quick status monitoring of the system.

Another major advantage is the anti-flood protection. Once a leak is detected, the device automatically stops operating, and the intelligent display continues to flash together with an audible alarm signal.
The system has electronic monitoring of filter element service life, a backlit display, water-saving technology, and automatic shut-off after a leak is detected.
Easy installation and convenient operation
The system has been designed so that installation and later operation are simple and intuitive. The solution does not require complicated servicing, which makes it a good choice for users who value easy maintenance.
Cartridge replacement takes place in a few simple steps: unscrew the housing nut, remove the used cartridge, insert the new one, and screw the housing back on. Standard 10" cartridges fit the system.

For proper device operation, compatible cartridges should be used, filter elements should be replaced on time, and the system should be operated within the parameters given in the technical specifications.
Modern faucet for clean water
The set includes a modern faucet designed for drawing clean water after the filtration process. The tap fits all kitchen filters and is equipped with a durable ceramic head.
The faucet is made of high-quality materials, which translates into comfortable use and reliability. It is easy to install and looks elegant with standard kitchen mixers. The package includes the accessories needed for connection.
5-stage water filtration
Water flowing through the RO400 undergoes a complete 5-stage filtration process. Each stage is responsible for reducing a different type of contaminant, thanks to which the reverse osmosis system effectively improves water quality for everyday use.

1st filtration stage
The mechanical foam cartridge made of polypropylene nonwoven fabric removes larger mechanical impurities insoluble in water, such as rust, suspended solids, sand, or silt, down to a size of 5 microns.
2nd filtration stage
The second stage removes mechanical impurities larger than 10 microns, reduces chlorine and its toxic derivatives, eliminates lead and toxic heavy metals, and also removes organic compounds, including bacteria.

3rd filtration stage
The mechanical foam cartridge made of polypropylene nonwoven fabric removes larger mechanical impurities insoluble in water, such as rust, suspended solids, sand, or silt, down to a size of 1 micron.
4th filtration stage
The 400 GPD osmotic membrane retains 96%-99.99% of organic and inorganic contaminants dissolved in water, heavy metals, and some bacteria and viruses no smaller than 0.001 microns. The contaminants are separated and discharged to the drain. The purified water passes through the openings to the central spindle and flows out of the membrane under pressure.

5th filtration stage
The block carbon cartridge improves the taste and smell of water.
Set contents
The set includes everything needed to start the system in the basic installation scope:
- RO400 system,
- clean water tap,
- installation accessories,
- a complete set of accessories for connecting the faucet.

Technical specifications
| Model | WodaRO RO400 |
|---|---|
| Feed water pressure | 0,1 MPa ~ 0,4 MPa |
| Water flow | 1,04 l/min |
| Salt rejection | 96% |
| Water recovery | > 50% |
| Operating temperature | 5 ~ 38 ℃ |
| Power input | 100~240V AC 50/60Hz 3A |
| Output | 24V DC 5A |
| Membrane capacity | 400 GPD |
| Inlet connection | 3/8” Quick Connect |
| Quick-connect tap | 3/8” |
| Drain | 3/8” Quick Connect |
| Product dimensions | 392*235*373mm |
Choose a set or individual cartridges. Replacement intervals depend on the cartridge and operating conditions.
Cartridge sets 1
Membranes 1
Additional accessories 2
Questions
Does the RO400 require a water tank?
No. It is a tankless reverse osmosis filter that filters water on demand, without the need to store it in a separate tank.
What membrane is used in the RO400 Tankless Water Filter Reverse Osmosis?
The device is equipped with a 400 GPD osmotic membrane, which is responsible for the key water purification stage in the reverse osmosis process.
How many filtration stages does the RO400 have?
The system offers 5-stage filtration: a 5-micron mechanical cartridge, a stage that reduces chlorine and selected contaminants, a 1-micron mechanical cartridge, a 400 GPD osmotic membrane, and a carbon cartridge that improves the taste and smell of water.
Is cartridge replacement complicated?
No. Replacement has been simplified: just unscrew the housing nut, remove the used cartridge, insert the new one, and screw the housing back on. Standard 10" cartridges fit the system.
Does the device inform you when cartridges need to be replaced?
Yes. RO400 has electronic monitoring of filter element service life and a reminder function for cartridge wear.
How does the anti-flood protection work?
When a leak is detected, the system automatically stops operating. At the same time, the display flashes and the device emits an audible alarm signal.
Is a clean water faucet included in the set?
Yes. The set includes a modern faucet for drawing clean water as well as the accessories needed for its connection and for installing the system.
What are the dimensions of the device?
The product dimensions are 392*235*373 mm, which makes the system compact and easier to fit into a kitchen cabinet.
Within what pressure and temperature range does the RO400 operate?
The system operates at a feed water pressure of 0,1 MPa ~ 0,4 MPa and at a temperature of 5 ~ 38 ℃.
Nieco kłopotliwy montaż, ale świetna jakość wody
Samo urządzenie robi dobrą robotę – woda jest krystalicznie czysta i smakuje lepiej. Niestety montaż zajał mi sporo czasu, a instrukcja mogłaby być bardziej jasna. Plus za brak zbiornika, co oszczędza miejsce pod zlewem. Urządzenie pracuje jednak dość głośno, co może przeszkadzać w małej kuchni. Ogólnie polecam, choć warto przygotować się na trochę pracy na początku.
zadowolony
Kupuję w sklepie Otowoda filtry do instalacji wodnej. Polecam zakupy ze względu na atrakcyjną cenę oraz profesjonalną obsługę.
Mega
Ja posiadam wersje zbiornikową a mamie kupiłem wersje bezzbiornikową bo też tutaj potrafi sama wymienić wkład
Super
naprawdę polecam, warte swojej ceny
polecam
Bezzbiornikowy filtr z odwróconą osmozą - moje odkrycie dla czystej wody. Polecam każdemu
polecam
Woda jest teraz czysta i smaczna, polecam
polecam
Bezzbiornikowy filtr z odwróconą osmozą - super wybór, woda smakuje doskonale
polecam
Filtr jest solidnie zbudowany i wytrzymały. woda czysta
polecam
futurystyczny, łatwy w obsłudze
Dbanie o środowisko
Wybierając filtr, przyczyniam się do zmniejszenia ilości plastikowych odpadków.