Best In Zisternen 2026

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Last Updated - 27.03.2026

Best Choice

01

GreenLife

GreenLife Cistern Flat Tank 5000 Litres Base Including Balance Dome, Cistern Lid, Soothed Inlet and Overflow Siphon – Rainwater Container or Underground Rainwater Tank for Rainwater

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Weight:
Made in Germany - Made in Germany
Includes overflow siphon with skimmer. The UNO overflow siphon serves as an odour trap to the channel and removes dirt particles floating on the surface when the cistern overflows through the so-called skimmer effect
Includes calmed inlet - this prevents the sediment layer from swirling up in the cistern. At the same time, oxygen is supplied to the lower part of the rainwater. The water in the flat tank stays fresh
Includes balancing dome with walk-in cistern lid - this can be telescoped and then adjusted to the soil in the 20 cm height. The lid can hold up to 200 kg

2.679,90 €
02

Garten-Zisternen

Garten-Zisternen Flat Tank 1700 Litres (with Filter Set and Cover)

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Technical data: cistern pump: automatic pump with pressure-controlled automatic on/off switch suitable for pumping from cisterns, for toilet flushing, washing machines and garden irrigation. Stainless steel housing, corrosion-resistant integrated dry run protection, flow control (drip protection), check valve, motor output max. 800 W. Maximum flow rate: 5100 l/h discharge head/pressure 4.8 bar max. 43 m intake, 15 m underwater power cable, diameter 100 mm x height 720 mm, 11 kg
Technical data cistern: dimensions (L x W x H): 2100 x 1200 x 1025 mm/pit dimensions (L x W): 3100 x 2200 mm, pit depth walkable: 1325 mm/weight: 85 kg
PE cover with frame can be walked on up to max. 200 kg according to DIN 1989, dimensions: (diameter x height): diameter 770 mm x 155 mm, child-safe, UV-resistant
Optionally with cistern pump with automatic on/off switch, 12 m connection hose, water socket and connection material
Optional garden filter and overflow siphon (mesh size 1 mm, roof area up to 300 m²) for self-assembly

1.039,00 €
Value for Money

03

4rain

4rain Slim Stone Decor Rain Barrel Set 1000 Litres Graphite Grey - 2 x Rain Barrel / Water Tank 500 Litres with Connector + Tap - Frost-proof Rainwater Tank / Rainwater Barrel - Water Barrel for Garden

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12% Off
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Robust, low maintenance and frost-proof: made of UV-resistant plastic, the rainwater tank remains colourfast and dimensionally stable. Our 1000 L water tank in a set is particularly durable, frost-proof and low-maintenance, can be used all year round. No rusting, no warping - only reliable performance. The installation of our rain barrel set is very quick and easy.
Practical water removal: equipped with two 3/4 inch connections, removing from our 4rain water barrel is very easy - be it by water butt with tap or for complete emptying in winter. The ideal height allows you to conveniently fill watering cans, perfect for your garden water butt. Included are our two 500 litre water butts, two high-quality outlet taps and the matching connector for both rainwater containers.
Our 4rain promise: our Slim Stone Decor rain tank is a product of the leading specialist for cisterns, rainwater barrels and rain barrels in a modern design. Trust in experience - for your rain collection container with system. Made in Germany, we stand for a holistic circular economy and state-of-the-art production steps.
Modern and space-saving: the high-quality stone look in graphite grey makes the above-ground rain reservoir a real highlight. With its narrow design, the water butt fits perfectly on house walls or corners. The sophisticated design ensures maximum stability without dents - even with a fully filled water tank.
1000 litres of rain water: with our 4rain Slim Stone Decor wall tank set, you can collect rainwater for free without any effort. Two elegant water butts with 500 litres each offer a capacity of 1,000 litres - an ideal water reservoir for medium to large gardens. Use our 4rain rain barrel as an efficient rainwater container, save money and save resources.

332,80 € 378,00 €(12% Off off)
04

AGUALEVE

AGUALEVE® Zisternenfrisch 1 kg *NEW* | Keeps Rainwater Fresh & Pure, Suitable for Watering | For All Cisterns & Rainwater Butt | Made in Germany | For 10,000 Litres of Rainwater | Grade 1.1

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Affordable Price: Our goal is to provide high quality products at a good price. Make the comparison, our thread algae killer is cheaper than comparable products.
Introducing ourselves: Agualeve is a medium-sized, family-run specialist company specialising in water treatment. Your satisfaction is our number one priority. If you have any questions, please feel free to contact us. We are happy to advise you and promise you to find a solution that will make you 100% satisfied.
Fresh rainwater for every use (also for watering of use and ornamental plants): our cistern fresh consists of highly effective, natural active oxygen. It removes and prevents odours, pollutants and deposits. Innovative granules with two-phase effect: quick dissolving case for immediate effect + slow dissolving core for a long-term depot effect.
Easy and safe to use: simply sprinkle our cistern fresh into the cistern water every 4 - 6 weeks. Completely safe for plants that are poured with the treated water. Also absolutely safe for animals who drink the treated water. Suitable for cisterns and rainwater barrels of all types and sizes. Sufficient for up to 10,000 litres of cistern water. Very long shelf life: min. 4 years.
Brand quality, made in Germany: from development to the finished product, 100% from Germany. Proven formula that has been used successfully for decades. Constant quality controls.

24,99 €
05

Söll

Söll Spring Zisternenfrisch for Water Purifier Water Butt Cleaner, Blue, 1.5 x 14.5 x 12.5 cm

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Recommended dosage: 1 tab for up to 4,000 litres of rainwater. Redose every 6 weeks. ZisternenFrisch is not overdosable. 1 tablet can also be used in a 500 litre water butt
Prevents tipping over: the water treatment tablet protects water in the garden barrel from tipping over due to bad odours and mud formation - for fresh rainwater for any purpose
Easy to use: sink the required number of tabs into the water container to the bottom and allow to dissolve for over 6 weeks.
Breaks down mud: the practical tablet dissolves over 6 weeks and releases highly effective active oxygen - cleans water, removes mud and prevents rot formation on the base of the container

6,79 €
06

Söll

Söll Spring Zisternenfrisch for Water Purifier Water Butt Cleaner, Blue, 1.5 x 14.5 x 12.5 cm

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Recommended dosage: 1 tab for up to 4,000 litres of rainwater. Redose every 6 weeks. ZisternenFrisch is not overdosable. 1 tablet can also be used in a 500 litre water butt
Prevents tipping over: the water treatment tablet protects water in the garden barrel from tipping over due to bad odours and mud formation - for fresh rainwater for any purpose
Easy to use: sink the required number of tabs into the water container to the bottom and allow to dissolve for over 6 weeks.
Breaks down mud: the practical tablet dissolves over 6 weeks and releases highly effective active oxygen - cleans water, removes mud and prevents rot formation on the base of the container

6,79 €
07

Kreher

XL Plastic Water Butt 310 Litres in Green with Very Robust Monoblock Stand, Tap and Lid with Safety Lock Top Quality

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10% Off
8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Winter care and assembly – empty in winter and store plastic tap separately or protect with plastic cover. Please note the minimum distance of 30 cm from the wall of the house. At best, anchor high tanks directly to the wall.
Versatile and practical – maximum flexibility in garden watering. Practical tap and solid stand included. Our tip: connect several tons together and increase your storage capacity for even more water storage volume for garden irrigation.
Robust construction – high-quality, UV and weather-resistant plastic for long-lasting, year-round water supply. Frost-proof and easy to care for. Removable lid with child lock protects against contamination. Store rainwater and rely on durability - just shop now!
Elegant design: the bulbous, green rainwater tank blends harmoniously into any environment with the simple, smooth look in grass green, space-saving on the house wall, in corners or free-standing. Perfect combination of XXL storage volume, functionality & modern design & look!
Easy installation, robust and safe – easy to set up and installed in minutes. Includes plastic tap and heavy duty water butt stand. Lid with practical child and animal safety lock. Holes for connecting to downpipe/gutter can be easily attached. Barrel stands for water removal with watering can.
Comprehensive water storage – Kreher rain tank with tap and mono block stand offers 310 L water reservoir for your garden, ideal in dry periods for garden irrigation of plants, raised bed and garden pond. Rely on environmental friendliness and cost efficiency - simply collect rainwater, store, save!
All information about the item – Kreher water butt with stand: 310 litres, dimensions of bin: 80 x 97 cm, dimensions stand: 70 x 38 H cm, colour: green, accessories: including tap, lid with child lock, stand. Delivery: by courier. Material: robust plastic

92,50 € 102,95 €(10% Off off)
08

4rain

4rain Slim Wall Tank Rain Barrel 650 Litres Taupe - Rain Butt Water Tank Barrel Rain Water Barrel Rainwater Tank Water Container Water Barrel Water Butt for Garden

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Versatile connections - Two 19 mm connections (3/4 inch) for outlet tap or hose set, 18 cm lid opening for easy maintenance and frost emptying.
Timeless, neutral design - The wall tank in stylish taupe adapts discreetly to any garden style. A simple and modern eye-catcher that blends harmoniously into the environment.
Space-saving water butt - The 4rain Slim wall tank holds 650 litres and offers maximum capacity in minimal space. Ideal for wall mounting, suitable for any garden.
Environmentally friendly material - Made of recycled plastic and fully recyclable, this rain barrel contributes to environmental protection and saves water for sustainable garden watering.
Durable and UV-resistant - Made of robust, weather-resistant materials with high UV protection, the tank remains in top shape during long-term outdoor use.

241,00 €
09

Afriso

Buderus Tank Contents Gauge 4 ft Frame R MT G1 1/2 Afriso

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Universal, mechanical level meter with plastic planetary gear
Reversible scale from 0 - 150 cm or 0 - 250 cm
Odour Proof
Connection thread: G 1 1/2

12,34 €
10

AGUALEVE

AGUALEVE® Cistern Fresh 500 g Keeps Rainwater Fresh and Pure, Suitable for Watering, for All Cisterns and Rainwater Barrels, Made in Germany, for 5,000 Litres of Rainwater, Grade 1.1

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Affordable Price: Our goal is to provide high quality products at a good price. Make the comparison, our thread algae killer is cheaper than comparable products.
Introducing ourselves: Agualeve is a medium-sized, family-run specialist company specialising in water treatment. Your satisfaction is our number one priority. If you have any questions, please feel free to contact us. We are happy to advise you and promise you to find a solution that will make you 100% satisfied.
Fresh rainwater for every use (also for watering of use and ornamental plants): our cistern fresh consists of highly effective, natural active oxygen. It removes and prevents odours, pollutants and deposits. Innovative granules with two-phase effect: quick dissolving case for immediate effect + slow dissolving core for a long-term depot effect.
Easy and safe to use: simply sprinkle our cistern fresh into the cistern water every 4 - 6 weeks. Completely safe for plants that are poured with the treated water. Also absolutely safe for animals who drink the treated water. Suitable for cisterns and rainwater barrels of all types and sizes. Sufficient for up to 10,000 litres of cistern water. Very long shelf life: min. 4 years.
Brand quality, made in Germany: from development to the finished product, 100% from Germany. Proven formula that has been used successfully for decades. Constant quality controls.

19,99 €