Self-cleaning rainwater filter
continuously as if by itself
Water filter for rainwater
Our vortex fine filters are ideal pre-filters for cisterns and are based on the tried-and-tested WISY filter principle that has been used for decades. Precisely fitting with standard connection diameters and scalable for every roof.
Suitable for every roof...
While the WFF 100 vortex fine filter can filter rainwater of up to 200 m² in temperate climate zones, the WFF 150 is suitable for reliable drainage of up to 500 m². The WFF 300 is ideal for large catchment areas of up to 3,000 m².
All WISY vortex fine filters can be easily combined and added to, so there is no limit to the size of the roof.
...and safe drainage according to standard!
Vortex fine filter as cistern pre-filter
Overview of all models
WISY vortex fine filters filter rainwater before it reaches the cistern. The fine filtration makes them ideal for use in toilets and washing machines, for cleaning or for watering the garden.
Vortex fine filter WFF 100
for single-family homes
To the product
Vortex fine filter WFF 150
for apartment blocks and small businesses
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Vortex fine filter WFF 300
for large roofs
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The WFF 300 VA fine vortex filter is made entirely of stainless steel. It is suitable for filtering rainwater and process water in industry. Thanks to the unique arrangement of the filter mesh, it has a high self-cleaning effect and can therefore be operated almost continuously without the process having to be interrupted cyclically.
It is designed for unpressurised flowing media and can be used wherever filtering or concentration of solids in liquids is required.
The housing and the filter insert are made of stainless steel. The mesh size can be selected from 100 µm to 1,000 µm.
Conclusion
Summary of WFF as cistern pre-filter
The WFF vortex fine filter is an extremely efficient and low-maintenance solution for reliably filtering rainwater before it enters the tank. The fine mesh size (0.28 mm), the self-cleaning function and the variants for small roofs through to large commercial systems make the WFF the perfect pre-filter for the cistern.
Regardless of whether you want to equip a classic garden, your home or a larger project: The vortex fine filters are well thought out and can be customised to suit your installation situation and roof area.
With up to a 10-year guarantee on plastic housings and proven filter technology from WISY, you are investing in clean water, low maintenance and long-term reliability.
Expert advice
on the right water filter
WISY offers expert advice on choosing the right water filter. You can use the contact form to get in touch with one of our experts directly and find the right solution for your system.