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Welcome to WISY

The careful use of our natural resources is the key to sustainability and environmental protection. Our aim is to make rainwater available to everyone as a decentralised water source. For this reason, you will find specially customised, high-performance products for private and commercial use in our range.

Welcome to the WISY-Webshop


The handling of natural resources such as water is the key to sustainability and environmental protection.

Our vision at WISY is to make rainwater almost everywhere available as a decentralized resource and therefore usable, both economically and ecologically.

For this reason, you will find high-performance products for private and commercial use in our range.


Read more
Wisy AG

The handling of natural resources such as water is the key to sustainability and environmental protection.

Our vision at WISY is to make rainwater almost everywhere available as a decentralized resource and therefore usable, both economically and ecologically.

For this reason, you will find high-performance products for private and commercial use in our range.


Read more
Made in Germany

Production in Germany

Unique filtration technique

Unique Filtration technique

Large product portfolio

Large product portfolio

Sustainable products

Sustainable products

low maintenance and durable

Low maintenance and durable

Ratgeber

Professional consultation

Made in Germany

Production in Germany

Innovativ

Unique filter technology

Recommendations

A selection of our product range

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Filter collector FS Downpipe filter, WISY filter principle
Filter collector FS
Regular price: €168.00
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Vortex fine filter WFF 150 WFF 150 Sectional view, WISY
Vortex fine filter WFF 150
Regular price: From €459.00
Pressure-tight Vortex Fine Filter WFF 300 VA Pressure-tight Vortex Fine Filter WFF 300 VA
Pressure-tight Vortex Fine Filter WFF 300 VA

Price on request

Cistern filter LineAr 100 Cistern filter LineAr 100
Cistern filter LineAr 100
Regular price: €312.00
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Sigma rainwater unit House with Sigma rainwater unit, WISY drawing
Sigma rainwater unit
Regular price: From €1,474.00
Maxima ZE 990 web rainwater unit Maxima rainwater unit 350 L tank, WISY drawing
Maxima rainwater unit
Regular price: From €3,290.00
Stabilix stone grey rain barrel, WISY GT 5150 Stabilix rain barrel, WISY GT 5100
Stabilix rainwater barrel 500 l
Regular price: €335.29
Sigura 9 separating station, WISY TR 5009 Sigura 9 separating station without bonnet, WISY TR 5009
Sigura 9 break tank
Regular price: €1,365.00
Sigura separation station, 350 litre container, square, WISY
Sigura 350 break tank
Regular price: From €2,390.00
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Multi-siphon with small animal protection and backflow prevention cut, WISY US 1002 Multisiphon with small animal protection and safety clamp, WISY US 1003
Overflow siphon DN 110
Regular price: From €124.00
Overflow siphon DN 200 Overflow siphon DN 200
Overflow siphon DN 200
Regular price: €679.00
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Inlet calming rainwater, WISY EB 0300 Inlet stabilisation, WISY drawing
Smoothing inlet for cisterns
Regular price: From €75.00
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Sigma rainwater unit House with Sigma rainwater unit, WISY drawing
Sigma rainwater unit
Regular price: From €1,474.00
Stabilix stone grey rain barrel, WISY GT 5150 Stabilix rain barrel, WISY GT 5100
Stabilix rainwater barrel 500 l
Regular price: €335.29
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Multi-siphon with small animal protection and backflow prevention cut, WISY US 1002 Multisiphon with small animal protection and safety clamp, WISY US 1003
Overflow siphon DN 110
Regular price: From €124.00
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Inlet calming rainwater, WISY EB 0300 Inlet stabilisation, WISY drawing
Smoothing inlet for cisterns
Regular price: From €75.00
Floating fine suction filter as a set
Floating fine suction filter as a set
Regular price: From €135.00
Float switch make-up yellow, WISY SS 1001 Float switch for mains water top-up
Float switch for mains water top-up
Regular price: From €49.00
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Zeta 02 automatic gearshift, WISY Zeta 02, Economical 97proz, de-Logo, WISY
Zeta 02 Pump Controller
Variants from €209.00
Regular price: €300.00
Multigo submersible pump for rainwater with tank and stand, WISY Multigo pressure diagram, WISY rainwater pump
Multigo submersible pressure pump
Regular price: From €715.00
AspriPlus pump with Zeta 02 automatic switch SP 129 AspriPlus self-priming pump
AspriPlus self-priming pump
Regular price: From €519.00
Optima 4 rainwater unit, WISY RW 9924 Optima rainwater unit
Optima rainwater unit
Regular price: From €1,820.00

Product overview

Collect rainwater

Find out everything you need to know about collecting and utilising rainwater.

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Large-scale rainwater systems

Our rainwater harvesting system is easily scalable and designed for professional use in large buildings.

More about large systems

Protect mains water

Our components for the protection of mains water.

More about mains water protection

Industrial filtration

More about our high-quality filters for the efficient separation of liquid media and solids for use in industry & commerce.

More about industrial filtration

Our product portfolio

We are your right contact for:

Regenwasserfilter

Rainwater filter

All WISY filters are low-maintenance and self-cleaning. Due to the vertical filter mesh, potential dirt is easily flushed away and solids stay out of your rainwater system.

More info
Pump & controller

Pumps & Pump controller

Suction and pressure pumps perfectly designed for transporting rainwater. Powerful and 97 % more economical in standby consumption thanks to the WISY pump controller!

More info
Ansaugfilter

Floating suction filters

Suction filter that floats automatically and extracts rainwater at the cleanest water depth. Made of stainless steel, they withstand heavy use. Protects pump and rainwater unit.

More info
rainwater units

Rainwater units

The rainwater unit draws water from the cistern. If the cistern is empty during dry periods, it automatically switches to using tap water. Rainwater units guarantee an uninterrupted supply of service water

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Regenspeicher, Zisternen & Regentonnen

Rainwater storage tanks, cisterns & rain barrels

The cistern for storing collected rainwater is an important component of the rainwater system. WISY offers you the right choice of storage tanks.

More info
Trennstationen und Trinkwasser-Nachspeisung

Break tanks and mains water top-up systems

We have the right break tanks and mains water top-up systems to safely separate process water from the public supply network for commercial or industrial use.

More info
Industriefilter

Commercial & Industrial Filters

All our products are also suitable for robust and reliable use in industrial applications . Our rainwater filters are available in specially customised versions on request

More info
Regenwasserüberlauf

Rainwater
Overflows

WISY offers a multifunctional overflow. Optionally with various options, e.g. backwater protection and vermin guard.

More info

Since 1989: WISY quality

Made in Germany

In many countries, tap water is monitored and treated to ensure drinking water quality at all times. However, a significant part of it is used for applications which do not require drinking water quality such as e. g. flushing toilets.

Therefore, we have specialised in developing first-class technology to make rainwater available for a wide range of applications. With our help, you can reduce your water costs and make a valuable contribution to protecting the environment.

References

A selection from our worldwide projects