Rainwater Filters for Cisterns – Clean Water & Easy Maintenance
Our rainwater filters reliably protect your cistern from leaves, dirt, and other contaminants, ensuring consistently clean rainwater and dependable system performance. Whether you need a filter installed in the tank access shaft, an underground pre-tank filter, or an in-tank filter with or without an overflow siphon, GreenLife offers the right solution for every installation scenario.
Thanks to self-cleaning wedge-wire screens with a mesh size of 0.8 mm, maintenance requirements are significantly reduced. The filters are suitable for roof catchment areas of up to 160 m² and are available in the common DN 100 and DN 150 connection sizes.
Included accessories such as lifting hooks make cleaning and maintenance simple and convenient. All GreenLife rainwater filters are durable, easy to retrofit, and specifically designed to support efficient rainwater harvesting for residential, gardening, and commercial applications.
Filter products
Our Service Hotline
Our customer service team provides expert support with product selection, applications, and accessories.
Service Hotline: +49 385 773 370 (Mon–Fri 7:00 AM–4:00 PM)
Email: info@greenlife.de
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
Built-in filter
DetailsFor filtering rainwater. The filter is installed in the dome of the tank. It has 4 inlets in DN100 (Ø110) / DN150 (Ø160). The vertically arranged outlet to the inlet stilling basin is also designed in DN100 (Ø110) / DN150 (Ø160). For maintenance, the filter basket is removed using the lifting rod.Technical DataMaterial: PolyethyleneWeight: 5 kgDiameter: 480 mmHeight: 575 mmConnections: DN100 (Ø110) / DN150 (Ø160)
Built-in tank filter
DetailsFor filtering rainwater. The filter is installed inside the cistern or tank directly between the inlet and overflow. The height difference between these connections is at least 30 mm. The filter contains a slotted screen with a mesh size of 0.8 mm, through which purified water flows vertically into the tank. During heavy rain or when the water level is very high, dirt particles are removed from the surface of the screen. Thanks to this self-cleaning effect, maintenance is less frequent than with basket filters. Suitable for surface drainage up to 160 m². A hook for lifting the filter is included.Technical Data Material: PolyethyleneWeight: 2.35 kgLength: 500 mmWidth: 195 mmHeight: 350 mm
Cistern filter basket 300
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
Coarse dirt filter basket
DetailsFor filtering rainwater. The filter basket is suspended by its stainless steel chain in the tank or cistern below the inlet (which should have an 87° elbow). It removes coarse dirt particles (> 1.5 millimeters) from the incoming rainwater and must be emptied at regular intervals.Technical DataDiameter: 300 mmHeight: 240 mmMesh size: 1.3 mmFilter basket material: Polyethylene (no additives)
Filter cartridges, 10µm (set of 3)
DetailsSediment filter/filter cartridge, polypropylene string, 20 µm Filter set for 1 year—or as needed—consisting of 3 pieces A filter cartridge can be used for up to 4 months; after that, it must be replaced 9 7/8" (inches) x 2 1/2" (inches)
Filter cartridges, 20µm (set of 3)
Details Sediment filter/filter cartridge, polypropylene cord, 20 µm Filter set for 1 year—or as needed—consisting of 3 pieces A filter cartridge can be used for up to 4 months, after which it must be replaced 9 7/8" (inches) x 2 1/2" (inches)
Filter screen with bracket (for tank-mounted filter)
Replacement part for the in-tank filter Filter media material: Polypropylene Handle material: Stainless steel Color: blue
Gutter grille
GreenLife's gutter guard is the perfect filter for rainwater. Whether the water is collected in cisterns or rain barrels, plant debris such as leaves and twigs can reduce water quality. It is therefore always recommended to pre-filter rainwater as thoroughly as possible, starting right at the gutter. Leaf guards filter rainwater Especially in the fall, when trees shed their leaves, it can be very frustrating when heavy rain causes leaves to enter the downspout and thus the rainwater tank. Not only does the quality of the collected water suffer from the debris, but it can also quickly clog the downspout. Cleaning often involves a lot of effort. Therefore, always use a leaf guard. Potential problems without a leaf guard Clogged downspouts Blockages in water hoses or showerheads Discoloration of the water Reduced water quality Staining of the gutter Breeding ground for pests With this simple leaf guard from GreenLife, such problems are a thing of the past. Assembly is incredibly easy, and cleaning usually requires nothing more than a hand brush. The gutter guard also provides reliable protection against birds. They can no longer nest in the gutter and must find other places to settle. Can I filter the rainwater even further? Yes, because the gutter guard is only a pre-filter. Depending on the type of your rainwater harvesting system, you can also use downspout filters, built-in filters, or tank-mounted filters. In addition to these mechanical filters, the patented Biovitoren for cisterns can also be used. These are biological filters that require very little maintenance. Installation of the gutter protection grid Installing the gutter guard is very straightforward. Each package contains segments for approximately 3.00 meters, which simply slot together. Depending on the width of the gutter, the guard can be folded. It fits any standard gutter size.https://www.youtube.com/watch?v=IVG8j1yDEMM
In-ground filter
DetailsFor filtering rainwater. The filter is installed in the ground in front of the tank. The height difference between the inlet and outlet is 130 mm. The filter contains a slotted screen with a mesh size of 0.8 mm. During heavy rain or when the water level is very high, debris is removed from the surface of the screen. Thanks to this self-cleaning effect, maintenance requirements are lower than with basket filters. Suitable for surface drainage up to 160 m². A hook for lifting the filter is included in the scope of delivery.Technical Data Material: PolyethyleneWeight: 14.0 kgDiameter (shaft): 400 mmHeight: 1,190 mm
Overflow siphon for built-in tank filter
Can be combined with the in-tank filter—an 87° KG elbow is required for installation (not included / must be provided by the customer)Odor trap to the storm sewerCleaning of the water surface via skimmer effect
Pre-filter for rainwater/drinking water
This pre-filter provides reliable protection against contaminants, so you can use rainwater or drinking water in your home with confidence. Install this filter system only between the rainwater pump and the point of use. With the 20 µm filter cartridges, you can enjoy clear rainwater/drinking water for 4 months. After that, simply replace the filter cartridge. The diameter of the inlet and outlet is 1 inch. Included: Filter system with removable filter chamber 1x filter cartridge, so you can get started right away Wall mount
Rain collector
DetailsSuitable for DN 100 downspoutsFor other DN sizes, the G0001802 adapter cone is recommendedIncludes 1-inch connection setEasy installationThe double-walled design ensures the connected rain barrel is filledWhen the barrel is full, the rainwater is drained through the downspout
Set of filter cartridges for drinking water treatment
With this set of filter cartridges, you can operate drinking water treatment systems (UV 2000 and DVGW-certified) for approximately one year. The sediment filter and activated carbon filter cartridges must be replaced every 4 months. The set consists of: 3x 20 µm sedimentation filter cartridges 3x 10 µm sedimentation filter cartridges 3x activated carbon filter cartridges
Tankeinbaufilter mit Überlaufsiphon
DetailsZur Filterung des Regenwassers. Der Filter wird innerhalb der Zisterne oder des Tanks direkt zwischen Zu- und Überlauf montiert. Der Höhenversatz zwischen diesen Anschlüssen beträgt mindestens 30 mm. Im Filter befindet sich ein Spaltsieb mit einer Maschenweite von 0,8 mm, durch das gereinigtes Regenwasser senkrecht in den Tank läuft. Bei Starkregen oder sehr hohem Füllstand wird die Oberfläche des Siebes von den Schmutzpartikeln befreit. Durch diesen Selbstreinigungseffekt ist der Wartungsaufwand geringer als bei Korbfiltern. Im Überlauf befindet sich ein Siphonbogen als Geruchsverschluss. Einsetzbar zur Flächenentwässerung bis 160 m². Ein Haken zum Ausheben des Filters gehört zum Lieferumfang.Technische Daten Material: Polyethylen Gewicht: 4,0 kg Länge: 950 mm Breite: 195 mm Höhe: 460 / 330 mm