2,100 liter underground tank - incl. dome and cover, with optional accessories
Space-saving cistern made of durable PE for reliable rainwater harvesting on small properties.
€1,029.00
Available, delivery time: 6 - 8 Working Days
- Description 2,100-Liter Underground Tank – Compact Tank for Rainwater Harvesting The GreenLife underground tank, with a capacity of 2,1… More
- Specifications MaterialPolyethyleneWeight65 kgVolume2,100 litersLength2,100 mmWidth1,200 mmHeight1,250 mmConnectionsDN100 (Ø110) More
- Downloads Dimensional drawingDownloadSpecificationsDownloadInstallation instructionsDownloadData sheetDownload More
- Delivery procedure Please note: This product is delivered by a freight carrier via truck. Delivery Process Once you place your order, you will f More
Product information " 2,100 liter underground tank - incl. dome and cover, with optional accessories"
2,100-Liter Underground Tank – Compact Tank for Rainwater Harvesting
The GreenLife underground tank, with a capacity of 2,100 liters, is ideal for the underground storage and use of rainwater—for example, for garden irrigation, household use, or cleaning tasks. Thanks to its compact, cylindrical design, the tank can be installed in a particularly space-saving manner and is ideal for smaller properties, gardens, or tight installation spaces.
Its relatively low weight makes transport and installation easy to handle. At the same time, the sturdy construction ensures high load-bearing capacity and long-lasting use.
The tank is delivered ready for connection—including an integrated dome, lid, and pre-assembled connection gaskets. Additional connection points allow for flexible expansion or later retrofitting.
Depending on requirements, various configuration options are available—from the basic version without accessories to the model with a Biovitor rainwater filter.
Advantages at a glance
- 2,100-liter capacity – ideal for rainwater harvesting
- Compact round shape – space-saving and versatile
- Seamlessly manufactured using the rotational sintering process – permanently leak-proof and stress-free
- Integrated dome with lid – delivered pre-assembled and ready for connection
- 3 pre-assembled DN 100 rubber lip seals – easy integration into existing systems
- Durable PE plastic – free of harmful substances, UV-resistant, and opaque
- High stability with low weight
- Additional connection surfaces available for custom extensions
- Made in Germany – 15-year warranty with proper installation
Equipment Variants & Service
The tank is available in the following variants:
- Without accessories – ideal for custom expansion
- with inlet stabilizer – for a smooth water inlet and reduced turbulence in the tank
- with built-in tank filter and inlet stabilizer – for pre-filtering rainwater directly in the tank
- with Biovitor – a biological filtration system combining natural water treatment and inlet stabilisation in one – low-maintenance & chemical-free
We are happy to assist you in selecting the right variant and in planning your rainwater system.
Delivery is curbside. Please note the delivery process.
Material, Sustainability & Quality
The tank is made of high-quality polyethylene (PE), is recyclable, and contains a proportion of recycled plastic. The material is free of harmful substances, chemically inert, and has no effect on the quality of the stored water.
The rotational molding process creates a seamless, stress-free tank body with high dimensional stability and permanent leak-tightness. The durable construction enables sustainable and resource-efficient use for many years to come.
Installation Note
Please follow the installation instructions. Before installation, connection, and commissioning, read all instructions carefully and in full, and observe all safety instructions.
Improper installation or failure to follow the instructions may void warranty and guarantee claims, particularly if the defect is attributable to faulty installation.
| Material | Polyethylene |
| Weight | 65 kg |
| Volume | 2,100 liters |
| Length | 2,100 mm |
| Width | 1,200 mm |
| Height | 1,250 mm |
| Connections | DN100 (Ø110) |
Do You Have Any Questions? We’re Here to Help.
Our customer service team is happy to assist you with any questions regarding product selection, application, installation, or accessories.
- Customer Service Hotline: +49 385 773 37-0 (Mon–Fri 7:00 AM–4:00 PM)
- Technical Support: +49 385 773 37-72 (Mon–Fri 8:00 AM–4:00 PM)
- Email: info@greenlife.de
Zubehörartikel
The 205-liter infiltration cube is ideal for retaining, infiltrating, and draining rainwater and treated wastewater. The inlet to the infiltration cube can be configured with a DN 100 or DN 150 connection (to be determined on-site). The infiltration elements can be arranged in a row and should be wrapped in geotextile to protect against soil intrusion. The 205 L infiltration cube is an easy-to-assemble kit consisting of 6 side panels with integrated mounting pins.The "205 L Infiltration Starter Set" consists of the following components:1 205-liter infiltration cube4 m² geotextile Local soil conditions are crucial for the correct design of an infiltration system and must be verified via a soil survey or an infiltration test. The design of the infiltration system must be adapted based on the soil’s infiltration capacity—please read the installation instructions and the instructions for the infiltration test very carefully. Technical Data Material: Polypropylene Weight in kg: 10 Connections: DN 100 / 150 Useful volume: 205 liters
DetailsConnection box for installing hose connections. It is inserted into a DN100 conduit, through which the water supply line also runs. A cover flush with the ground surface protects the connections. Technical Data Weight: 1.85 kgColor: greenDiameter: 288 mmTotal height: 248 mmConnections: 1/2" and 3/4"
DetailsExtendable dome for mounting on the tank dome. The expansion dome has a variable length ranging from 380 mm to 580 mm.Technical DataWeight: 10.7 kgDiameter: 600 mm / 800 mmHeight: 380 mm to 580 mmWithout cover!New model available from 03/2021
“Antique” Garden Water Dispenser – Your Practical Water Dispensing Station with an Antique Look The garden water tap with nostalgic charm offers a decorative and functional way to draw rainwater directly in the garden. It can be freestanding or recessed into the ground. The water tap is available in three colors with a timeless granite finish. It comes with a chrome-plated spout and a key for operation. Your benefits at a glance Rustic stone look – blends harmoniously into natural and garden areas Ready for use in no time – concrete base optional Freestanding & partially recessed into the ground – easy to install Sturdy faucet with key – includes a removable key for child safety UV- and weather-resistant PE plastic – durable, low-maintenance material Suitable for rainwater harvesting – Made in Germany – high-quality workmanship, robust, and recyclable Service & consultation included Expert advice on optimal placement, connection, and combination with pumps or tanks Safe delivery within Germany with free shipping Sustainability with responsibility Made from single-type, 100% recyclable polyethylene. The material is environmentally friendly and chemically inert (has no impact on the environment). The production and recycling of plastic products conserve resources—products designed for responsible and future-oriented use that promote a circular economy. Applications Private gardens – attractive and functional Community and school gardens – durable and child-safe Landscaping and horticultural projects – decorative with practical benefits Public green spaces – durable water feature with a timeless design Do you have questions? We’re here to help. Our customer service team is happy to assist you with any questions regarding installation, technology, and rainwater harvesting. Phone: 0385 / 77337-0 (7 a.m.–4 p.m.) Technical Support: 0385 / 77337-72 (8 a.m.–4 p.m.) Email: info@greenlife.de
DetailsThe garden water dispenser is a freestanding column with a faucet. It can be bolted to a solid surface or placed directly into the ground. The rainwater supply line is connected at the bottom of the rear. A spout with a removable control key is included.We recommend combining it with the GAP X80 or GAP X120 automatic rain barrel pumpTechnical SpecificationsMaterial: PolyethyleneColor: EbonyWidth: 107 mmDepth: 107 mmHeight: 1030 mm
GAP X80 Rainwater Tank Pump – Your Automatic Submersible Pump with Dry-Run Protection The GreenLife GAP X80 automatic submersible pump is a high-quality, reliable, and powerful device designed specifically for extracting clear water from rain barrels, rainwater systems, flat tanks, and cisterns. The pump can be used, among other things, for emptying rainwater storage tanks as well as for watering gardens and green spaces. The pump is fully submersible and is immersed in the water. Water delivery is automatically controlled when the line to the consumer is opened. When the consumer is closed, the pump switches to standby mode. The pump then enters start/stop mode and maintains pressure in the line. Included as an accessory is a telescopic tube with a bracket (hose kink protection) to position the pump at the edge of the tank. The convenient shut-off valve with quick-connect coupling allows you to easily draw water from the rainwater barrel. If the pump is located in a tank or cistern, a water connection box or garden tap can be operated directly via the ¾-inch connection. Product features and benefits at a glance Integrated dry-run protection & thermal fuse – protects the motor and pump from damage in case of low water level or overload Protection class IP X8 – for continuous operation underwater High flow rate – up to 83 l/min (5,000 l/h) at a maximum head of 20 meters (2.0 bar) Pumped medium: clear water – suitable for clean water, preferably filtered, max. temperature 35 °C Robust construction – fully submersible, housing made of durable plastic Fully ready for connection – includes a 10 m power cord, telescopic tube, shut-off valve, hose holder, quick-connect coupling, and mounting hardware Easy to handle – lightweight at 6.3 kg and with an integrated carrying handle Even easier for you: service & consultation included Expert advice on selection, installation, and combination with connection accessories Free shipping within Germany Guaranteed pickup service within Germany in case of repair during the 24-month statutory warranty period Applications Irrigation of gardens and green spaces – directly from rainwater storage tanks Operation of garden water taps and garden irrigation Can be integrated into automatic irrigation systems for balconies, patios, and home gardens Feed pump for flat tanks and cisterns in residential and commercial settings Notes Do not pump saltwater, wastewater, corrosive, highly flammable, or explosive substances (e.g., gasoline, kerosene, nitro thinner), or oils such as heating oil and vegetable oils! The water temperature must not exceed 35 °C. If there is a risk of frost, drain the pump and store it in a frost-proof location. Please follow the installation and operating instructions. Do you have questions? We’re here to help. Our customer service team is here to assist you with any questions regarding pump selection, installation, or accessories. Phone: 0385 / 77337-0 (7 a.m.–4 p.m.) Technical Support: 0385 / 77337-72 (8 a.m.–4 p.m.) Email: info@greenlife.de
What's Included 1x 125 mm hole saw with centering drill bit 2x rubber lip seal DN 100 (Ø110)
DetailsExtendable dome for mounting on the underground tank. The extendable sliding dome has a variable length ranging from 620 mm to 820 mm.Technical SpecificationsWeight: 14.45 kgDiameter: 600 mm / 800 mmHeight: 620 mm to 820 mmTank cover not included!New model available from 03/2021
Vent and air release valves for safe pressure equalization & reliable emergency drainage The vent and air release valve with DN 100 emergency overflow ensures reliable air equalization in tanks, pipes, and soakaway systems and effectively protects the system against overpressure or underpressure. If the maximum water level is exceeded, for example during heavy rain, the component also acts as an emergency overflow for safe drainage. The vent is typically installed at the end of an infiltration system and is usually discreetly located outdoors, e.g., in a hedge or flower bed. To ensure that (rain)water can flow smoothly into the system, a controlled air outlet must be provided elsewhere. For this purpose, a DN 100 KG pipe is installed behind the system, which safely guides the air to the surface. The vent is the terminus of this line and is designed to reliably prevent the entry of animals. Product Features & Benefits at a Glance Pressure equalization during water withdrawal or supply – prevents damage caused by overpressure or underpressure Automatic venting and de-airing – ensures trouble-free system operation Integrated emergency overflow – protects against overfilling during heavy rain Standard DN 100 connection – compatible with common KG pipe systems Lightweight & durable – approx. 350 g, made of robust polypropylene Made in Germany – manufactured to high quality standards and DIN EN ISO 14001:2015 Typical applications Rainwater storage tanks & infiltration systems – for ventilation and emergency drainage Wastewater collection pits & infiltration systems in wastewater treatment plants – for pressure equalization and operational reliability Sustainability The product is made of durable, single-grade, and fully recyclable polypropylene. The material is long-lasting, free of harmful substances, environmentally friendly, and chemically inert – it has no impact on the environment. The production and recycling of this plastic are resource-efficient. Responsible use in line with the circular economy is a central component of our sustainable practices. Notes The vent should be inspected once or twice a year to ensure consistently reliable operation.
DetailsSmooth inflow of rainwater into the rainwater storage tank. Fine dirt particles slowly settle to the bottom and form a sediment layer, which has been proven to have a positive effect on the stored rainwater. This prevents the sediment layer from being stirred up, while simultaneously supplying oxygen to the stored water.Technical DataMaterial: PolyethyleneHeight: 320 mmDiameter: 260 mmConnection: DN100 (Ø110)
DetailsFor filtering rainwater. The filter features a filter basket with a mesh size of approx. 1 mm. Rainwater is fed in via a 300 mm long PE pipe DN100 (Ø110). The pipe can be shortened. The cistern filter basket is easy to retrofit and can be removed effortlessly for cleaning.Technical DataFilter basket material: PolyethyleneFilter basket height: 240 mmFilter basket diameter: 300 mm