Filling water filters for motorhomes, camper vans & boats
The Alb Filter Mobil filters the water when you fill your fresh water tank from an external source - contaminants, bacteria and pollutants never even get into the tank.
No installation needed, no powerful pump required: simply connect it in between when filling and be self-sufficient on the road.
Alb filling filters
Bestseller
Bestseller
When is a filling filter the right choice?
The filling filter is fitted on the outside between the tap or hose and the filler neck. This means the water is filtered when filling up, not when it is drawn off. The result: the tank itself stays clean! Depending on the set, deposits and germ growth have less of a chance from the outset.
What is filtered?
The Alb Mobil camping filters compared
Mobil Active
Mobil Nano
Mobil Fusion
Pro Camper
- Clear column
- Strong reduction
- Significant reduction
- Partial reduction
- Not filtered
The all-round carefree option
Mobil Fusion filling filter
The Fusion version combines the Active and Nano cartridges into one powerful system. It can be used both for filling the tank from outside (Mobil) and as a permanent installation in the vehicle (Travel).
With the Alb Filter Fusion, you cover the entire filtration spectrum of the Active and Nano cartridges – the best possible filtration 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?
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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.
Pre-filter extension for any water source
Alb Filter Protect
Depending on the water source or country, the water contains rust, sand, mud or other coarse particles. They clog the cartridge and reduce the flow rate and therefore your water pressure. The Protect pre-filter simply screws onto the filter housing and uses its replaceable 40 µm filter pad to capture these particles before they reach the cartridge.
- Free choice of water source – even at wells, water points or when the condition of the pipes is unknown
- Protection for cartridge and pump – the main filter stays permeable for longer and the water pressure remains stable
- Low running costs – the filter pad only needs changing every 6 months
Available as an accessory or directly when you buy your Mobil filter in the “with Protect” version.
Installation & use
Practical step-by-step instructions help you set up and maintain the Alb Filter Mobil. 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 installation inside the vehicle, a diaphragm pressure pump is recommended. Filling the tank takes a little longer – with all filter stages (Protect + Active + Nano), around 10 minutes for 120 litres.
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. Check each stage individually to find the affected one: turn the Protect around and flush it clear, usually replace the Active, 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.
Mobil filling filter
What are the advantages of the Mobil variant?
Pollutants and bacteria don't even get into the tank, no powerful pump is needed, the filter can also be used to fill canisters – and no installation is required.
What are the disadvantages of the Mobil variant?
Before drinking the water cold, a thorough system cleaning is necessary, and consistent hygiene is required to prevent germs from entering the system.
Do I have to remove the filters after filling the tank?
No. While travelling, the cartridges stay installed; only the stagnant water is drained. Remove and dry them only after the holiday.