High-Quality Cisterns for Rainwater Harvesting
Whether flat tanks, round tanks, or large-capacity tanks: All of our underground tanks are made of high-quality, environmentally friendly, and 100% recyclable polyethylene (PE). They are ideal for use as rainwater tanks and fire suppression water tanks, as well as for rainwater retention. Thanks to their low weight, they are easy to handle and simple to install. The tanks are chemically inert and therefore excellent for storing rainwater. The rotational sintering process ensures a stress-free, seamless tank body with maximum stability and absolute leak-tightness. We deliver the tanks pre-assembled and ready for connection, and offer a 15-year warranty on our cisterns.
Hochwertige Zisternen für die Regenwassernutzung
Ob Flachtanks, Rundtanks oder Volumentanks: Alle unsere Erdtanks bestehen aus hochwertigem, umweltverträglichem Polyethylen (PE) - zu 100% recyclebar. Sie eignen sich ideal als Regenwassertanks und Löschwassertanks sowie zur Regenwasser-Rückhaltung (Retention).
Filter products
Unsere Servicehotline
Unser Kundenservice unterstützt Sie kompetent bei Fragen zur Produktauswahl, Anwendung und Zubehör.
Service-Telefon: 0385 / 773 370 (Mo–Fr 7–16 Uhr)
E-Mail: info@greenlife.de
1,000 liter underground tank - incl. dome and cover, with optional accessories
Compact, lightweight, and durable cistern for reliable rainwater storage in a small space.
Ground tank 2100 liters
Space-saving cistern made of durable PE for reliable rainwater harvesting on small properties.
Ground tank 2200 liters
Space-saving cistern for underground rainwater harvesting, featuring a durable, seamless PE tank body and flexible configuration options.
Flat tank 2,000 liters - with dome, cover and optional filter
2,000-liter plastic cistern – space-saving, durable, and easy to install. Ideal for gardens and households, pre-assembled and ready to connect.
Flat tank 3,000 liters - with dome, cover and optional filter
3,000-liter plastic cistern—space-saving, durable, and easy to install. Ideal for gardens and households, pre-assembled and ready to connect.
Flat tank 8,000 liters - with dome, cover and optional filter
Dual system consisting of two 4,000-liter tanks – pre-assembled and ready to connect, easy to install. Ideal for the garden and household.
Ground tank 3200 liters, groundwater stable
An exceptionally durable PE cistern designed for demanding installation conditions and long-term use.
Underground tank 3300 liters
Durable, pre-assembled cistern for independent rainwater harvesting—long-lasting, flexible installation options, and Made in Germany.
GreenLife soil shaft 140 l / GES 0.14
DetailsGround-level shaft made of high-quality plastic, with cover. Suitable for various applications and can be cut to length. Technical Data Material: Polyethylene Weight: 13 kg Useful volume: 140 liters Diameter: 400 mm Height: 1,120 mm
Ground tank 4700 liters
Durable rainwater storage tank for sustainable rainwater harvesting, featuring long-lasting PE construction and flexible configuration options.
Ground tank 6500 liters
6,500-Liter Underground Tank – Large-Capacity Cistern for Underground Rainwater Storage More storage capacity for efficient rainwater harvesting: The GreenLife underground tank, with a capacity of 6,500 liters, is a robust and durable solution for underground rainwater storage in homes and gardens. Thanks to its large tank volume, the cistern is particularly suitable for larger properties, intensive garden irrigation, or applications where large quantities of non-potable water are regularly required. Rainwater can be used in a variety of ways, for example for garden irrigation, cleaning tasks, or household applications where drinking water is not required. The underground tank comes ready for installation and can be combined with the appropriate accessories as needed. Choose between versions without accessories, with an inlet stabilizer, with a tank-mounted filter, or with Biovitor—a biological and low-maintenance rainwater filter with integrated inlet stabilization. Use our rainwater calculator to determine the appropriate system size for effective rainwater harvesting. Product Features and Benefits Large capacity of 6,500 liters – ideal for households and gardens with increased demand for stored rainwater. Underground design – saves space in the garden and allows for discreet integration into the property. Easy to install – efficiently designed plastic tank with a comparatively low weight. Seamlessly manufactured using a rotational sintering process – a stress-free, one-piece tank for high stability and long-lasting watertightness. Robust dome manhole – height-adjustable and tiltable for better adaptation to the terrain. Walkable safety cover – slip-resistant design and child-proof lockable. Pre-assembled DN 100 connections with rubber lip seals – ready for connection and quickly operational. Sturdy tank structure with corrugated profile – ensures high dimensional stability, safety, and quality during underground installation. Additional connection points available – allows for flexible expansions or future retrofits. High-quality PE plastic – UV- and corrosion-resistant as well as opaque. Made in Germany – includes a manufacturer’s warranty when installed properly in accordance with the manufacturer’s instructions. Service & Equipment Options The 6,500-liter underground tank is available in various configuration options: Without accessories – ideal if you want to customize the tank or use existing components. With inlet stabilizer – for a smooth water inlet and less turbulence in the tank. With built-in tank filter and inlet stabilizer – for pre-filtering rainwater directly in the tank and ensuring a clean supply. With Biovitor filter – a biological filtration system featuring natural water treatment and integrated inlet stabilisation; low-maintenance and free of chemical additives. Delivery within mainland Germany is free of charge, delivered curbside. Please note our information regarding the delivery process. Sustainability, Materials, and QualityThe tank is made of durable polyethylene. The material is corrosion-resistant, durable, and very well suited for underground rainwater storage. Thanks to its robust construction, the underground tank is designed for long-term use and supports resource-conserving rainwater harvesting for many years.The material used is chemically inert and has no effect on the quality of the stored water. At the end of its service life, the product is fully recyclable and can thus be returned to the recycling cycle. Notes For round tanks, the excavation pit is generally dug deeper rather than wider. If groundwater or perched water is present, appropriate protective measures are required. Please refer to the respective installation instructions for this. Alternatively, the use of a flat tank may be advisable if soil conditions permit. Read the installation instructions carefully and in their entirety before installation, connection, and commissioning, and observe all safety instructions. This is the only way to ensure safe and proper operation. Improper installation or failure to follow the instructions may void warranty and guarantee claims, particularly if a defect is attributable to faulty installation.
GreenLife earth pit 950 l / GES 0.95
DetailsUnderground shaft made of high-quality plastic, with a walk-on cover. Suitable for various applications and can be cut to length by up to 350 mm (the adapter ring must be removed and reinstalled when cutting). Technical Data Material: Polyethylene Weight: 55 kg Useful volume: 950 liters Diameter: 762 / 800 mm Height: 2,150 mmExcavation diameter: approx. 1.40 m
GreenLife soil shaft 500 l / GES 0.5
DetailsGround box with cover, made of high-quality plastic. Suitable for various applications and can be cut to length (the adapter ring must be removed and reinstalled when cutting). Technical Data Material: Polyethylene Weight: 30 kg Useful volume: 500 liters Diameter: 640 mm Height: 1,650 mm
GreenLife soil shaft 900 l / GES 0.9
DetailsUnderground junction box made of high-quality plastic, with connection surfaces and a cover. Suitable for various applications and can be cut to length up to 350 mm.Technical Data Material: Polyethylene Weight: 50 kg Useful volume: 900 liters Diameter: 780 / 1,000 mm Height: 2,150 mm
Underground tank system 13,000 liters
13,000-Liter Underground Tank System – Maximum Capacity for Storing Rainwater and Wastewater Versatile. Robust. Ready to connect. The 13,000-liter GreenLife underground tank system offers a high-capacity solution for rainwater harvesting or the safe storage of domestic wastewater (with factory approval, without DIBt approval). The combination of several round tanks with pre-assembled sliding domes and a walk-on cover enables flexible, safe installation—even on larger properties or for increased water demand. Your benefits at a glance 13,000-liter total capacity – ideal for the home, garden, cleaning, or decentralized wastewater management Seamless manufacturing using the rotational sintering process – stress-free structure, 100% watertight Modular system with pre-assembled sliding domes – extendable by 245 mm, tiltable by 5° for optimal terrain adaptation Walkable safety covers – robust, slip-resistant, and easy to maintain Multiple DN 110 connections with rubber lip seals – can be integrated immediately into existing systems Optimized tank statics with corrugated profile – high dimensional stability combined with low weight Additional connection surfaces available – can be drilled individually for future expansions Made in Germany – with a 15-year warranty when properly installed Even easier for you: Service & consultation included Expert support with product selection, sizing, and accessories Delivery within Germany – safe and free to the curb Select compatible accessories directly: Biovitor filter – biological rainwater treatment with integrated inlet flow control Car-accessible covers – for courtyards and driveways Drainage device & gooseneck – for convenient emptying Ventilation and deaeration units / activated carbon filters – for odor prevention and pressure equalization Sustainability with responsibility The tanks are made of recyclable polyethylene (PE), which is free of harmful substances, chemically inert, and durable. A portion of the material comes from in-house recycling – the construction is 100% recyclable. This makes the system resource-efficient and future-proof. Applications Rainwater harvesting – for household connections, garden irrigation, or cleaning Wastewater management (with factory approval) – decentralized solution without a sewer connection Large-scale systems – for apartment buildings, farms, vacation homes, or commercial use Modularly expandable – designed for accessories and retrofits Do you have questions? We’re here to help. Our customer service team is happy to assist you with selection, accessories, and installation: Phone: 0385 / 773370 Email: info@greenlife.de
Underground tank system 9400 liters
9,400-Liter Underground Tank System – Ample capacity for wastewater or rainwater, pre-assembled and ready for installation The GreenLife underground tank system with a total capacity of 9,400 liters is the smart solution for underground storage of large volumes of water. It consists of two interconnected water tanks (4,700 liters each) and is equally suitable as a wastewater collection tank or a rainwater cistern. The cisterns are delivered pre-assembled and ready for installation—including a sturdy sliding dome and walk-on cover—and are immediately ready for use. Your benefits at a glance Large storage volume & high flexibility – two interconnected underground tanks with a total capacity of 9,400 liters for rainwater or wastewater. Pre-assembled & ready for connection – sliding domes (200 mm height-adjustable, tiltable up to 5°) and walk-on safety covers included in the scope of delivery. Robust material & long service life – made of high-quality, UV-stabilized polyethylene, seamlessly manufactured using a rotational molding process, completely watertight. Environmentally friendly & sustainable – partially made from recycled plastic, 100% recyclable, manufactured in a resource-efficient manner. Thanks to optimized tank statics and reinforced ribbed profile – exceptionally stable, yet lightweight and easy to handle. 15-year warranty – tested GreenLife quality for maximum safety and durability. Even easier for you: service & consultation included You choose the right equipment for the tank – we deliver your underground tank system with pre-assembled connections, and upon request also with an inlet surge arrester, tank installation filter, or the Biovitor filter for chemical-free rainwater treatment. We’re happy to advise you! Sustainability with responsibility The wastewater tanks/rainwater tanks are manufactured from environmentally friendly polyethylene (PE) in a resource-efficient manner. They are fully recyclable, durable, and significantly easier to handle than traditional concrete tanks. The material is free of harmful substances, chemically inert, and opaque—ensuring the stored water remains fresh and clear for a long time. Applications Rainwater harvesting for garden irrigation, household use, and cleaning Wastewater storage on properties without sewer connections (factory approval for domestic wastewater) Large-scale systems in agriculture, commercial, or municipal projects Installation and Maintenance Instructions The INSTALLATION MANUAL must be strictly followed. Please read the manual carefully and in its entirety before installing, connecting, and commissioning this product, and observe the safety instructions contained therein. Failure to do so may void warranty and guarantee claims. With optional car-traffic-resistant tank covers, the cisterns can also be installed in areas accessible to cars. (Link to car-traffic-resistant cover G0001240) Do you have questions? We’re here to help. Technical Support: 0385 / 77337-72 (8 a.m.–4 p.m.) Customer Service: 0385 / 77337-0 (7 a.m.–4 p.m.) Email: info@greenlife.de
Dome extension for waste water tank 3,000 liters
Dome Extension for 3,000-Liter Sewage Collection Tank – For Safe Access in Deep Installations Precise fit. Sturdy. Frost-proof. The dome extension, with a net installation height of 245 mm, allows for convenient adjustment of the access shaft when our 3,000-liter wastewater collection tank is installed at a lower depth. It ensures a flush finish with the ground surface—reliable, easy to install, and durable. Your benefits at a glance Precise height adjustment – 245 mm net height for ground leveling in deep installations Perfect compatibility – compatible exclusively with the GreenLife 3,000-liter wastewater collection tank Frost protection through deep installation – protects the tank and connections from weather conditions Cannot be shortened – fixed height for precise planning and secure sealing Robust PE plastic – weather-resistant, impact-resistant, and durable Made in Germany – manufactured to the highest quality and environmental standards Sustainability with responsibility The dome extension is made of single-grade, recyclable polyethylene. It is durable and supports a resource-efficient installation method for rainwater or wastewater systems. Applications Wastewater collection tanks – exclusively compatible with the 3000-liter wastewater tank Uneven terrain – height compensation for varying ground levels Frost-protected installations – safe access solution for deep underground installation
Floating suction filter
DetailsWater extraction in clean areasSinkable and suspended solids are not drawn in5 m 1" suction hose with clampsBrass check valveSuction filter
Pre-filter for infiltration
Reliable pre-filter for rainwater infiltration – for effective rainwater filtration Reliably protect your infiltration system from dirt and coarse particles – with our high-quality rainwater pre-filter. The pre-assembled filter chamber, made of durable, eco-friendly plastic, is the ideal solution for efficient and long-lasting rainwater infiltration. Your benefits at a glance:Ready to connect & ready for immediate use (inlet & outlet DN 110)Effective coarse debris filtration for clean waterEasy maintenance and quick cleaningDurable, walkable plastic cover includedEnvironmentally friendly & fully recyclableUV-resistant and opaque Product description The rainwater pre-filter impresses with its ease of use, long service life, and quick installation. Incoming rainwater is filtered through a coarse debris filter basket. Filterable solid particles such as leaves and sand remain in the basket, while the purified water then flows into the infiltration system. The filter unit is easily accessible and can be easily inspected and cleaned—ideal even in areas with heavy leaf fall. Technical DetailsTwo pre-assembled DN 110 connections with rubber lip sealsInlet and outlet for standard KG pipeInspection opening Ø 400 mmCuttable shaft with marking groovesMaterial: Polyethylene (PE), free of harmful substances, chemically inertWalkable cover, child-proof screw-on Application This pre-filter is ideal for use in infiltration systems, e.g., in combination with infiltration trenches, infiltration cubes, or infiltration blocks. It can also be placed upstream of a cistern to treat incoming rainwater. Material, Manufacturing & QualityOur rainwater pre-filter is made of polyethylene (PE)—a material ideally suited for rainwater products because it is environmentally friendly, free of harmful substances, and chemically inert, meaning it does not react with other substances. Thus, the quality of the rainwater is not negatively affected. Maintenance & Installation Instructions As with the installation of KG pipes, the rainwater filter must also be embedded in gravel and compacted evenly all around. Please ensure—using a spirit level, for example—that the filter is installed horizontally. The shaft can be cut to any length and easily adapted to local conditions. It features circumferential marking grooves that serve as a guide when cutting with a standard jigsaw. Depending on the amount of fallen leaves, the filter insert should be removed several times a year for cleaning and, if necessary, rinsed with a garden hose. Do you have questions about this product, its installation, or setup? Our expert customer service team is available to provide you with professional support. Please contact us at service@greenlife.de or by phone at 0385 77 337 72 (weekdays from 8 a.m. to 4 p.m.).
Pre-filter infiltration "EASY PRO"
Durable rainwater pre-filter with coarse debris basket – pre-assembled, low-maintenance, long-lasting The “Easy Pro” rainwater pre-filter is the reliable solution for pre-filtering rainwater before it enters your cistern or infiltration system. With two pre-assembled DN100 connections and a high-quality, walkable cover, this pre-filter offers an optimal combination of functionality, safety, and design. Thanks to the coarse debris filter basket installed in the shaft, coarse contaminants are efficiently retained. The filtered rainwater then flows cleanly for further use or infiltration into the ground. The filter is easily accessible, particularly easy to maintain, and ideally suited for installation in the ground. Product benefits at a glance:Ready to connect, pre-assembled & ready for immediate useCoarse debris filter basket for clean rainwaterDurable, slip-resistant plastic cover (load capacity up to 200 kg), child-proof screw-onuniversally applicable for cisterns or infiltration systemsTwo DN100 connections (lip seals pre-installed)Environmentally friendly: made from partially recycled PE, fully recyclableEasy to clean – ideal for areas with heavy leaf fall Application This pre-filter is ideally suited for use in infiltration systems, for example in combination with infiltration trenches, infiltration cubes, or infiltration blocks. It can also be installed upstream of a cistern to effectively remove coarse contaminants from incoming rainwater. Technical Data & NotesMaterial: durable, UV-resistant plastic (PE)Cover: walkable, slip-resistant, Ø 600 mmCleaning opening: easily accessiblePossible connection size: DN 110Symbolism: Cover design featuring the “Flower of Life” – slip-resistant & decorative Material & Quality The “Easy Pro” pre-filter is made of durable, eco-friendly polyethylene (PE)—an ideal material for use in rainwater management. PE is not only durable and shatter-resistant, but also fully recyclable, free of harmful substances, and chemically inert. This ensures that the quality of the filtered rainwater remains unaltered. Thanks to its high-quality construction, the filter is particularly easy to install and maintain. It is manufactured in a resource-efficient manner, partly using recycled plastic. Compared to pre-filters made of other materials, PE offers better recyclability, lower weight, and easier handling—both during installation and ongoing operation. Installation and Maintenance Instructions The filter should be embedded in a sand bed in a horizontal position and compacted. (An inclined position can impair function.) The shaft can be shortened and adapted to local conditions. For cleaning, we recommend regularly rinsing the filter basket with a garden hose depending on the amount of fallen leaves. Do you have any questions? Our technical support team is happy to assist you with installation, connection, or planning questions. Contact us by phone at 0385 77 337 72 (weekdays 8 a.m.–4 p.m.) or by email at service@greenlife.de.
1 inch connection set for cellar tanks
DetailsKit for connecting 2 cellar tanks0.5 m suction hose 1'' 2 clamp-type clamps2 tank feed-throughs with 1'' hose fittings Weight: 0.9 kg
125 mm hole saw set with 2 DN 100 rubber lip seals
What's Included 1x 125 mm hole saw with centering drill bit 2x rubber lip seal DN 100 (Ø110)
125 mm hole saw set with 3 DN 100 rubber lip seals
What's Included 1x 125 mm hole saw with centering drill bit 3x rubber lip seal DN 100 (Ø110)
Activated carbon filter cartridges, set of 3
Activated Carbon Block 9 7/8" x 2 1/2"For the GreenLife pre-filter for rainwaterFor UV systemsA filter cartridge can be used for up to 4 months; after that, it must be replaced - Filter set for 1 year - or as needed- consists of 3 pieces