Reliable, efficient, durable: the WISY Vortex Fine Filter

Our vortex fine filters are rainwater filters in a class of their own. Well established on the market for 30 years, they are used in numerous rainwater systems in Europe and around the world - whether in Germany, Malaysia, South Africa, India, the USA or Brazil.

The vortex fine filter delivers what it promises: the clearest rainwater, efficiently purified. Our customers agree: with its self-cleaning effect and the unique WISY filter principle, our vortex fine filter is the first choice for filtering rainwater.

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Vortex Fine Filter WFF 100 with extension tube Vortex Fine Filter WFF 100 with extension tube
Vortex Fine Filter WFF 100 with extension tube
Variants from €374.85*
€410.55*
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Vortex fine filter WFF 150 with extension tube Vortex fine filter WFF 150 with extension tube
Vortex fine filter WFF 150 with extension tube
Variants from €546.21*
€581.91*
Vortex fine Filter WFF 300 Vortex fine Filter WFF 300
Vortex fine Filter WFF 300 with reduced height Vortex fine Filter WFF 300 with reduced height

The WISY Vortex Fine Filters WFF Rainwater Filters

Our vortex fine filters are ideal pre-filters for the cistern and rely on a filter principle that has been proven and tested for decades, precisely tailored to every application:

While the WFF 100 can filter rainwater of up to 200 m² of roof area in temperate climates, the WFF 150 is suitable for safe drainage of up to 500 m² . The WFF 300, is ideal for large catchment areas of up to 3000 m².

All WISY vortex fine filters can be easily combined and supplemented with each other, so that there are no limits to the size of the catchment area.

Powerful rainwater filter

Convince yourself by watchin the adjacent video clip of the high performance of the WISY vortex fine filters: The rainwater flowing in from the side is efficiently filtered by the filter insert made of fine stainless steel mesh with a mesh size of only 0.28 mm and passed on to the cistern.

In this way, leaves, moss and smaller particles washed along with the water are reliably separated, permanently washed down the filter fabric and then transported into the canal or an infiltration.

Low maintenance and easy to clean

Like all WISY rainwater filters, the WFF vortex fine filters are extremely low-maintenance and only need to be inspected 2 times per year. If cleaning is necessary, the filter insert can be easily removed from the housing and cleaned in the dishwasher.

As the filter insert is made entirely from high-quality stainless steel, it is extremely durable. Thousands of WISY vortex fine filters have been in operation with the original filter insert for well over 20 years. The plastic housing will also last you a lifetime.

The WISY vortex fine filters at a glance

Product information

Vortex Fine Filter WFF 100

The WFF 100 vortex fine filter is usually installed in the horizontal rainwater pipe in the ground in front of the cistern. However, it is also suitable for free-standing installation, in which case it is best fixed with the optionally available wall fastening.

Rainwater flowing in from the side is filtered by the WFF 100 vortex fine filter and passed on to the cistern. In the process, it passes through the filter insert made of fine stainless steel mesh with a mesh size of only 0.28 mm. In this way, not only leaves and moss, but also smaller particles washed along with the water are reliably separated and flushed into the canal or an infiltration.

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InfoImportant details

Pre-filter for the cistern For installation in the ground or for free-standing installation Filters rainwater of up to 200 m² roof area Can be driven over with cars and lorries up to 30 t overall weight Low maintenance
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Vortex fine filter WFF 150 Vortex fine filter WFF 150

Product information

Vortex Fine Filter WFF 150

The WFF 150 vortex fine filter is usually installed below ground level in the horizontal water pipe. It filters the rainwater flowing in from the side and directs it sidewards to the cistern.

Its filter insert is made of fine stainless steel mesh with a mesh size of only 0.28 mm. This reliably separates leaves, moss and other washed-in debris and directs them also sidewards into the drain pipe. A coarser mesh size of 0.44 mm is also available as an option, as well as free-standing installation with the wall mountings available as accessories. All pipe conections are 360 degrees turnable.

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InfoImportant details

Pre-filter for the cistern For installation in the ground or for free-standing installation Filters rainwater of up to 500 m² roof area Can be driven over with cars and trucks up to 30 t overall weight Low maintenance
Vortex fine Filter WFF 300 Vortex fine Filter WFF 300

Product information

Vortex Fine Filter WFF 300

The WFF 300 is a rainwater filter suitable for installation in the ground or for outdoor installation (e.g. for industrial use). Its trafficability has been tested according to ATV and, depending on the cover design, it can be driven over by vehicles with a total weight of up to 60 tonnes.

The pipe conections are 360 degrees turnable.

The housing is made of polypropylene and the filter insert is made of stainless steel. The mesh size of the filter fabric is 0.38 mm.

When used for rainwater utilisation, two inspections per year are sufficient for maintenance. Cleaning can be carried out with a high-pressure cleaner if necessary.

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InfoImportant details

Pre-filter for the cistern For installation in the ground or free standing Filters rainwater of up to 3000 m² Can be driven over with cars and lorries up to 2.4 t, 12 t or 60 t Low maintenance
Pressure-tight Vortex Fine Filter WFF 300 VA Pressure-tight Vortex Fine Filter WFF 300 VA

Product information

Vortex Fine Filter WFF 300 VA

The WISY rainwater and industrial vortex fine filter WFF 300 VA is made entirely of stainless steel. Due to the unique arrangement of the filter fabric, it has a high self-cleaning effect and can therefore be operated almost continuously without having to interrupt the process cyclically.

It is designed for pressureless 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 of the filter fabric is 0.38 mm.

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InfoImportant details

Pressure-tight pre-filter for cisterns or in industrial processes Efficient filtration and separation of solids optional available for aggressive media Pressure-tight up to 6 bar Low maintenance