Built-in water filters - permanently installed for maximum self-sufficiency
The Alb Travel filters are professional built-in water filters (inline filters) for motorhomes, caravans and boats – the perfect solution for anyone who wants to travel self-sufficiently and independently.
The installed Nano germ barrier protects against bacteria and microplastics close to the point of use. The Active broad-spectrum filter reduces pollutants and ensures delicious water with no chlorine taste.
Alb built-in filters
Bestseller
Bestseller
Decision guide
When is a built-in filter the right choice?
The Travel built-in filter is permanently installed in the water line - most effectively directly before the point of use under the sink. So the water is filtered when it is drawn off, not when you fill up. The result: what comes out of the tap is filtered - including anything that only gets into the water in the tank.
What is filtered?
Alb Travel camping water filters compared
- Strong reduction
- Significant reduction
- Partial reduction
- Not filtered
The all-round carefree option
Travel Fusion built-in filter
The Fusion version combines the Active and Nano cartridges into one powerful system. As a Travel variant, it is permanently installed in the vehicle and filters the water directly before the point of use – regardless of how the tank was filled.
With the Alb Filter Fusion, you cover the entire filter spectrum of the Active and Nano cartridges – the best possible filter performance on the road.
What our customers say
Genuine buyer reviews – invited after purchase, independently collected and published by REVIEWS.io.
Need help with your purchase?
Feel free to call us or send us an email!
New: accessories for filling the tank
Entry and Entry S filling adapters
The Entry and Entry S filling adapters serve as a practical aid when filling the tank and are installed directly on the filler neck. Thanks to various adapters, they fit different filler necks and hold the Mobil filter or Flextube securely at the water inlet.
The difference: Entry S is the plain filling adapter without a filter pad. Entry additionally integrates a filter pad (40 µm) as a pre-filter for suspended particles, sediment, rust, sand and microplastics – thus protecting the tank and pump.
Installation & use
Practical step-by-step instructions help you set up and maintain the Alb Filter Travel. You can find the complete instructions in the PDF user manual.
Questions about your installation? Call us: +41 41 792 1001 or write to us.
You can find all the details on installation, cartridge changes and replacement intervals in the installation and use guide.
Frequently asked questions (FAQ)
Selection & system
Which variant should I choose?
Mobil (filling from outside) is suitable for well-maintained, clean systems. Travel (permanent installation inside) is ideal for large tanks and self-sufficient travel with a diaphragm pressure pump. The Pro Camper Set combines both – Active pre-filter outside and Nano germ barrier inside.
For water you can drink cold without any concerns, combine Active + Nano; for coffee, tea and cooking, the Active is sufficient.
Can I convert or extend an existing system?
Yes. Thanks to the modular design of the housings and connections, sets can be converted at any time – a filling set (Mobil) can also be installed inside, and vice versa.
Do I still need additives such as silver ions despite the filter?
No. The Nano germ barrier filters out bacteria such as E. coli, legionella or faecal germs purely mechanically. You can do without silver ions and other preservatives.
Hygiene, tank & storage
Is it necessary to clean the tank before use?
Yes. Before drinking the water cold and starting filtration, the tank should be thoroughly cleaned and disinfected – for example with an active-oxygen-based cleaner. This increases safety and extends the service life of the filters.
Do the cartridges stay installed in the housing during the holiday?
Yes. The cartridges stay installed during the trip. After filling the tank, briefly open the lid, drain the stagnant water, close it again and store it in a dry place.
Do the cartridges have to be removed after the holiday?
Yes. After a longer period of non-use, remove the cartridges, let them air-dry and store them in a cool, dry place. Replace after 4 (Active) or 6 months (Nano) of use – breaks during which the cartridges are stored dry don't count. Do not store in rice, in the fridge or in a sealed bag.
Do the 4 months also count if the cartridge is stored dry?
No – only the time in use counts. The 4 months (Active) or 6 months (Nano) are operating time, not an expiry date. If you take the cartridge out during a break between trips and let it dry completely, the clock stops for that period.
Example: 3 weeks of summer holiday, then stored dry – next season you carry on using the same cartridge until a total of approx. 4 months of use or around 3,000 litres is reached (Nano: 6 months or around 5,000 litres).
Thorough drying is important: The Active cartridge needs 2–3 days in an airy, shady place until all residual moisture is gone. Only dry the Nano cartridge in the open air. Then store the cartridges in a cool, dry place – not in the fridge, not in rice and not in airtight packaging. If the flow rate drops noticeably before then, the cartridge needs replacing sooner.
How do I store the filter cartridges correctly?
Correct: cool, dry and well ventilated. Wrong: sealed plastic bag, container with rice or storage in the fridge.
How do I dispose of used cartridges?
In general household waste – they are incinerated because pollutants have accumulated inside them.
Technology & pump
Does the water pressure drop?
Yes, every cartridge affects pressure and flow rate. For interior installation, a diaphragm pressure pump is recommended so that the throughput does not drop noticeably.
For permanent installation: Active min. 2 bar, Nano min. 1.5 bar, Fusion min. 2.5 bar. More pressure is no problem: there is no upper limit, and higher pressure merely increases the flow rate.
My filter cartridge is clogged – what now?
A clogged cartridge is normal wear and tear, not grounds for a complaint. Identify the affected stage by checking each one individually: turn the Protect round and flush it clear, usually replace the Active, and flush the Nano with pressure against the direction of flow (only in an emergency). A pre-filter (Protect) helps prevent this.
Does the installation position of the housing matter?
No, the installation direction has no influence on the filter performance.
Do Alb Filter products have certificates?
The Nano cartridge is certified according to ASTM F838-15A and can also be used in public facilities in the event of acute legionella contamination.
What is the difference compared with a UV system?
Both aim to make water germ-free. The Nano hollow-fibre membrane retains bacteria purely mechanically – without electricity, regardless of flow rate and turbidity, and at a lower purchase price. It is a wearing part and must be replaced, whereas a UV system can scale up or become contaminated with germs.
What is the maximum temperature for the filter cartridges?
Active and Active Plus+: maximum 23 °C. Nano: 5–65 °C.
Travel built-in filter
What are the advantages of the Travel variant?
The internally installed Nano germ barrier provides protection close to the point of use, the Active filter also reduces pollutants from plastic tanks, filling the tank is not slowed down and no pressurised water point is needed.
What are the disadvantages of the Travel variant?
A pressure pump with min. 1.5–2.5 bar, depending on the variant, is required, the filter must be installed in the water line, and unfiltered water gets into the tank – this can be solved with a switchover device.
Do I need to install a different pump?
A diaphragm pressure pump with the following minimum pressure is recommended: Travel Active min. 2 bar, Travel Nano min. 1.5 bar, Travel Fusion min. 2.5 bar – this way, the full cartridge capacity is used. More pressure is no problem: there is no upper limit, and higher pressure merely increases the flow rate.
Where in the water line should I install the filter?
The safest place is directly under the sink at the point of use. Alternatively, directly after the pump in the cold water line to protect the entire pipe system.
We already have a filter installed – what do we need to consider?
The Alb Filter can often be integrated using two 1/2-inch adapters or connected to the flexible 10 mm hoses via the Travel connection kit. If needed, send us a photo of the system – we'll be happy to advise you.





