Filter Cartridges & Filter Cartridges from Carbonit, Prime Inventions, Pentek, Lifesaver, Grayl,...

Due to the high performance spectrum with possible drinking water contamination (for example lead an copper from older house lines) and the outstanding hygienic properties, we recommend using this high-quality filter cartridge.  Service life: The filter cartridge must be replaced after 6 months (according to DIN 1988). Basically, within the 6 months 10,000 liters of water may be filtered. An earlier change may, however, be necessary if the water flow is noticeably reduced. An early change is not a defect of the filter used, but an indication of increased occurrence of fine particles in unfiltered water.  Technical specifications:Filter fineness: approx. 0.45 µmFlow: approx. 2 liters per minute (depending on the water pressure)Temperature: Use only with cold water, protect against frost  This NFP Premium filter cartridge fits to all our table-top filter units the under-table filter units of the Pure series as well as to the Vario HP of Carbonit. This cartridge is also compatible with all Alvito water filter systems. Use only with cold water. Protect from frost.

This cartridge combines two technologies for high water flow in special applications (medical technology, water machines) and convenient operation with downstream technical equipment or turbulizers. Hospital hygienists document that in water proven legionella, pseudomonads and fungi (eg Aspergillus) can be a transmission source for humans. Scientific research by the Institute for Hygiene and Public Health of the University of Bonn shows that these burdens can occur not only in the hospital, but also in the home environment. Here, of course, primarily immune-compromised persons are at risk. Terminal filters can provide protection.  The capillary membrane of IFP Puro (also called hollow fiber membrane) consists of polyethersulfone.Equipment:1. CARBONIT Monoblock® - baked block filter made in the sintering process, awarded several times and scientifically recognized. (Not to be confused with loose granulated or extruded blocks).2. Sterile (bacteria-free) water by Carbonit monoblock IFP Puro (Dual Stage Pro) with microfiltration membrane of 0.15 µm absolute (STER-O-TAP with log 8 reduction). Technical specifications:Recommended filter change every 6 months. Filtration capacity of about 5,000 liters. Filter fineness: 1 µmTemperature: For technical reasons, the use is only allowed for cold water, protect against frost.  Standardized 9 3/4 "element with flat gaskets and integrated O-ring (SOE). Especially suitable for low water pressure.Internationally patented filter composition. For filtration of bacteria and organic substances. Meets ANSI / NSF Standard 53 (cyst & turbidity reduction) and EPA Standard. Also the epdwa guidelines for a filter fineness of at least 1 micron (1 µm) nominal and a recommended filter change every 6 months are kept. Everything for your safety!  This IFP Puro filter cartridge fits to our table-top filter units, the under-table filter units of the Pure series as well as the Vario HP from Carbonit. This cartridge is also compatible with all Alvito water filter systems. Use only with cold water. Protect from frost.

CARBONIT® filter cartridges combine water filtration and improved taste of the water. For the production, a special EM-ceramic is added to the activated carbon in the process of sintering. Among other things, this ceramic causes a reduction in the surface tension of the water and the reduction of cluster structures. Thus, the taste of the water is described by most people as softer or rounder. Together with the proven filter performance of the CARBONIT® NFP Premium filter technology, the result is an ideal water filtration. Activated carbon has a large surface, which is used as an adsorbent, for example in chemistry, medicine and water- and wastewater treatment. The sintered activated carbon block filter based on coconut focusses the chemical-physical removal of unwanted ingredients in drinking water e.g. caused by the influences of the house installation. Service life: The filter cartridge must be replaced after 6 months (according to DIN 1988). Basically, within the 6 months 10,000 liters of water may be filtered. An earlier change may, however, be necessary if the water flow is noticeably reduced. An early change is not a defect of the filter used, but an indication of increased occurrence of fine particles in unfiltered water. Technical specifications:Filter fineness: approx. 0.45 µmTemperature: Use only with cold water, protect against frostFlow: approx. 2 liters per minute  This EM Premium 5 filter cartridge fits to all our table-top filter units, the under-table filter units of the Pure series as well as to the Vario HP from Carbonit. This cartridge is also compatible with all Alvito water filter systems. Use only with cold water. Protect from frost.

Due to the high performance spectrum with possible drinking water contamination (for example lead an copper from older house lines) and the outstanding hygienic properties, we recommend using this high-quality filter cartridge. Due to the approximately 55 percent increase in activated carbon mass, it offers an approximately 20% higher adsorption rate than the standard cartridge NFP Premium of Carbonit and a 30% higher adsorption capacity. Service life: The filter cartridge must be replaced after 6 months (according to DIN 1988). Basically, within the 6 months 10,000 liters of water may be filtered. An earlier change may, however, be necessary if the water flow is noticeably reduced. An early change is not a defect of the filter used, but an indication of increased occurrence of fine particles in unfiltered water.  This GFP Premium filter cartridge fits to all our table-top filter units the under-table filter units of the Vario HP of Carbonit. This cartridge is also compatible with all Alvito water filter systems. Use only with cold water. Protect from frost.

This filter cartridge has been manufactured based on the two-stage IFP Puro for Prime Inventions. It combines the special properties of a sintered CARBONIT® monoblock with a microfiltration of 0.15 µm through the inner capillary membrane. Even high pollutant-loads that could accumulate in the human body are reliably restrained. Minerals dissolved in the water are retained.  The EM Puro is ideal for low line pressure and allows to limit bacterial loads. The Sterotap® capillary membrane has been tested according to ANSI / NSF Standard53 (Cyst and Turbidity Reduction). The activated carbon block used has tested safety according to German food law and is processed in an environmentally friendly manner using renewable raw materials. The addition of EM ceramic powder (EM = Effective Microorganisms) gives the filter cartridge special properties. The taste of the water appears thereby many users more full-bodied and fresher.  Service life: The filter cartridge must be replaced after 6 months (according to DIN 1988). Basically, 5,000 liters of water may be filtered within the 6 months. An earlier change may, however, be necessary if the water flow is noticeably reduced. An early change is not a defect of the filter used, but an indication of increased occurrence of fine particles in unfiltered water. Filter fineness: 0.15 µm (membrane) / 5 µm (activated carbon)Dimensions: Length 9 3/4 ", da = 70 mmFlow: approx. 6-8 liters per minute, depending on line pressureTemperature: Use only with cold water, protect against frost.  This EM Puro filter cartridge fits to all our table-top filter units, the under-table filter units of the Pure series as well as to the Vario HP from Carbonit. This cartridge is also compatible with all Alvito water filter systems.

Water Filter Cartridge EM Premium D by CARBONIT® with EM Ceramic 0,7µm with increased throughput capacity also especially for water swirlers, table filter Sanuno Vital, .... CARBONIT® filter cartridges combine water filtration and improved taste of the water. For the production, a special EM ceramic is added to the activated carbon filter in the process of sintering. Among other things, this ceramic reduces the surface tension of the water and reduces the size of the cluster structures. Thus, the taste of the water is described by most people as softer or rounder. Together with the proven filter performance of the CARBONIT® NFP Premium filter technology, the ideal water filtration results. Activated carbon has a large surface, which is used as an adsorbent in, among other things, in chemistry, medicine and water and wastewater treatment. It primarily removes unwanted colors, flavors and odors from gases, vapors and liquids. The sintered activated carbon block filter based on coconut focusses the chemical-physical removal of unwanted ingredients in drinking water e.g. the influences of the house installation. Service life: The filter cartridge must be replaced after 6 months (according to DIN 1988). Basically, within the 6 months 10,000 liters of water may be filtered. An earlier change may, however, be necessary if the water flow is noticeably reduced. An early change is not a defect of the filter used, but an indication of increased occurrence of fine particles in unfiltered water. Use only with cold water. Protect from frost.

This powerful LifeSaver® replacement JerryCan activated carbon filters, fits only the Lifesaver JerryCan water filter. The five tablets are enough up to 2,500 l of water. It reliably filters chlorine, flavors and odors out of the water. You can also operate the Lifesaver JerryCan without the activated carbon tabs. However, the filtered water can still contain taste impairments. Advantages of Lifesaver JerryCan activated carbon tablets     Food-safe material - free of BPA and BPS     Filtration of up to 500 l of water with one tab (chlorine, flavors and odors)     high throughput (up to 4 l / min)     BPA & BPS free     great value for money Important notes on use and storage Unused the Aktivkohletabs are without hesitation up to 3 years storable. Already used tabs should be changed every 500l or every 2 months. If the used filter is stored longer, please remove the activated carbon table. Caution - a wet or damp filter should never freeze. Scope of supply: 5x Lifesaver JerryCan activated carbon tablets

This powerful LifeSaver® Cube replacement filter fits only the Lifesaver Liberty water filter. It reliably filters chlorine, flavors and odors out of the water. You can also operate the Lifesaver Cube without the activated carbon tabs. However, the filtered water can still contain taste impairments. Advantages of Lifesaver Cube activated carbon tablets     Food-safe material - free of BPA and BPS     Filtering up to 100 liters of water with one tab (chlorine, flavors and odors)     high throughput (up to 1.2l / min)     BPA & BPS free     made in the UK     great value for money Important notes on use and storage Unused the Aktivkohletabs are without hesitation up to 3 years storable. Already used tabs should be changed every 100l or 2 Months If the used filter is stored longer, please remove the activated carbon table. Caution - a wet or damp filter should never freeze. Delivery: 6x Lifesaver Liberty activated carbon tablets

Replacement filter cartridge for the Aqua Avanti Inline main and extension filter stages. Description of the filter EM Premium 5 InlineCARBONIT® filter cartridges combine water filtration and improved taste of the water. For the production, a special EM ceramic is added to the activated carbon filter in the process of sintering. Among other things, this ceramic reduces the surface tension of the water and reduces the size of the cluster structures. Thus, the taste of the water is described by most people as softer or rounder.Filter change: Close the water supply valve, unscrew the old filter cartridge in a clockwise direction and pull it downwards. Insert the new filter cartridge from below and screw it in counterclockwise until it stops. Reopen the water supply. Use: The filter cartridge must be changed after six months. In principle, up to 10.000 liters of water may be filtered during this time. An earlier change may, however, be necessary if the water flow is noticeably reduced. This is usually an indication of increased occurrence of fine particles in unfiltered water. The water flow is now about 2 liters / min. Use only with cold water, protect against frost. Weight: 830 g

Filter cartridges produced by CARBONIT® in cooperation with Prime Inventions combine water filtration with water taste improvement. A special EM ceramic is added to the activated carbon filter during the sintering process. Among other things, this ceramic reduces the surface tension of the water and the size of the cluster structures. As an absolute highlight, a water turbulence unit was installed in the cartridge. This means that most people describe the taste of the water as softer or rounder. Experience the first Carbonit filter cartridge with integrated turbulence! Based on the already proven cartridge EM Premium D, the EM Aquawhirler has an integrated whirling unit. This consists of high-quality POM material and is bacteria-repellent thanks to its special coating. This means that the risk of re-infection into the filter cartridge can be largely eliminated. The EM Aquawhirler filter cartridge has a mechanical filter fineness of < 0.7 µm and a very high chemical-physical adsorption performance against chemical substances. The addition of approx. 5% EM ceramic gives it special properties. The filter cartridge is ideal for all customers who cannot or do not want to connect a water vortex to their faucet. By replacing the filter cartridge, you always have a clean new whirler. In the filter cartridge the whirling unit is integrated in the existing carbon block. Service life The filter cartridge must be replaced after 6 months (according to DIN 1988). In principle, 10,000 litres of water may be filtered within the 6 months. However, an earlier change may be necessary if the water flow is noticeably reduced. Early replacement is not a defect in the filter used, but an indication of the increased occurrence of fine particles in unfiltered water.   Use only with cold water. Protect from frost.

Set of 4 Grayl Geopress replacement filters Replacement filters fit all Grayl GeoPress outdoor and travel filters. These are the successor generation of the successful and well-known Grayl Ultralight Purifiers and not compatible with each other. The Grayl replacement filters are compact and affordable. They filter suspended matter, protozoa, bacteria and even viruses. It also reduces most chemicals. There is currently no other filter on the market that does so much than the compact Grayl. With this valuable companion you can safely drink from almost any source of water.     BPA-free     No batteries, chemicals, pump tips and other accessories needed     Removes: Pathogens in water (99.99% of viruses, 99.9999% of bacteria, 99.99% of protozoan cysts), including rotavirus, hepatitis A, norovirus, giardiasis, cryptosporidium, E. coli, cholera, salmonella, Ruhr & more     Filter: Particles (filters eg silt, microplastics, etc.); Activated carbon effectively adsorbs chemicals, pesticides, heavy metals, flavors and odors     Reduces chemicals and heavy metals     Works optimally at a pH between 5 and 9.5 (in nature hardly any water is available with a pH outside these limits)     NSF Protocol 42 and 53 for the removal of pathogens and chemicals; Conforms to the EPA Guidance and Protocol for Testing Microbiological Water Purifiers Delivery: 4x replacement filter Grayl GeoPress (suitable for all available colors) Note on storage - unused, the filter cartridges can be stored for 10 years without hesitation. Already used cartridges can be stored for 3 more years according to the manufacturer. If you want to play it safe, however, we recommend that you do not store a used cartouche for more than a year. Please always dry well before storing! Caution - NEVER freeze a wet or damp filter.

IFP Ultra - the virus-safe activated carbon cartridge from Carbonit The combination of two technologies leads to high filtration performance and virus security. Why should one use such a cartridge? Hospital hygienists document how tap water can be a source of transmission in the case of legionella, pseudomonads and fungi (e.g. aspergillus). Scientific studies by the Institute for Hygiene and Public Health at the University of Bonn show that these stresses can occur not only in hospitals but also in the home. Of course, people with weakened immune systems are primarily at risk here. Filters at the "point of use" can provide protection. Structure of the water filter cartridge The cartridge consists of a CARBONIT Monoblock® (baked block filter, manufactured in the sintering process, awarded several times and scientifically recognized) and a capillary membrane (also called hollow fiber membrane) made of polyether sulfone. Such a high-quality, high-performance cartridge should not be confused with loose fillings of granulated charcoal or extruded blocks. Due to this structure, the external activated carbon block with a fineness of 5 µm filters the pollutants and particles dissolved in the water through adsorption. The ultrafiltration membrane located in the center of the activated carbon holds back particles from a size of 0.00002 mm. This also applies to bacteria and viruses. Standards Internationally patented filter composition. For the filtration of bacteria, viruses and organic substances. Complies with ANSI / NSF Standard 53 (cyst & turbidity reduction) and EPA standard. The epdwa guidelines for a filter fineness of at least 1 micron (1 µm) nominal and a recommended filter change every 6 months are also observed. Everything for your safety! For technical reasons, use is only permitted with cold water, protect against frost. Recommended filter change every 6 months.

The decalcifying cartridge improves the taste of cold and hot drinks (especially to improve the aroma of coffee and tea) and protects household appliances against calcification. The flowed through ion exchange resin, reduces the hardness of the water.The cartridge fits into the table top filter units "Mercuro" and "Jupitos" as well as the sub-filter housings of the “Vario HP” and “Pure"series. This cartridge is also compatible with all Alvito water filter systems. Use: The water flow should not exceed about 2 l / min., so that a noticeable decalcification is guaranteed. The possible duration of use depends on the degree of hardness of the input water. Depending on the raw water hardness up to 1.900 l (degree of hardness 5-10 dh) or 450 l (degree of hardness 11-25 dh) can be achieved as static quantity. The ion exchange resin in the cartridge can be replaced by yourself. The change is made when the symptoms typical of the calf such as tea skin, aroma loss in tea / coffee or lime deposits on surfaces occur again. According to DIN 1988, a change of granules is required after 6 months at the latest. Use only with cold water. Protect from frost.

Replacement filter cartridge for the Aqua Avanti Inline main and extension filter stages. EM IFP Premium 5 Inline This filter cartridge was manufactured by CARBONIT® based on NFP Premium exclusively for Prime Inventions. Due to the mechanical filter fineness of <0.45 µm, it has a high chemical-physical adsorption performance against chemical substances. CARBONIT® filter cartridges combine water filtration and improved taste of the water. For the production, a special EM ceramic is added to the activated carbon filter in the process of sintering. Among other things, this ceramic reduces the surface tension of the water and reduces the size of the cluster structures. Thus, the taste of the water is described by most people as softer or rounder. The filter cartridges type IFP are ideal for the retention of possible pollutants in drinking water systems. Pollutants of anthropogenic origin, which could accumulate in the organism, are reliably removed and stored. The IFP activated carbon filter block has a commercially available, thin wall for liquid treatment at low line pressure. Use: The filter cartridge must be changed after six months. In principle, up to 5,000 liters of water may be filtered during this time. An earlier change may, however, be necessary if the water flow is noticeably reduced. This is usually an indication of increased occurrence of fine particles in unfiltered water. The water flow is now about 4 liters / min. Use only with cold water, protect against frost. Weight: 770 g

  The replacement filter fits all Grayl Ultralight & Ultrapress outdoor and travel filters. The filter is not compatible with Grayl Geopress models.  It is small and affordable and filters out suspended solids, protozoa, bacteria and even viruses. It also reduces most chemicals. There is currently no other filter on the market that does as much as the little Grayl. With this little companion, you can safely drink from almost any water source. -BPA-free -No batteries, chemicals, pump attachments or other accessories needed. -Effective against protozoa (99.9999%), bacteria (99.9999%), viruses (99.9999%) -Reduces chemicals and heavy metals -Functions optimally at a pH between 5 and 9.5 (in nature there is hardly any water with a pH value outside these limits). -Tested according to NSF standards (National Sanitation Foundation, USA) Note on storage - unused, the filter cartridges can be stored for 10 years without hesitation. Already used cartridges can be stored for 3 more years according to the manufacturer. However, if you want to be on the safe side, we recommend that you do not store a used cartridge for longer than one year. Please always allow to dry out thoroughly before storing! Caution - a wet or damp filter must NEVER freeze.

The sintered activated carbon cartridge WFP Select 60 (filter mesh 10 µm) from the German manufacturer Carbonit is a fine-pore sediment filter and adsorber for flavorings such as chlorine, etc. with initially not measurable pressure loss.Commercially available fine filters have a fineness of 40-60 µm and are usually made of metal, plastic or fleece. These have no retention against pollutants or can improve the water taste.The WFP Select 60 can do both :-)

Replacement filter for the Showerfilter QW for protection against legionella from the well-known German quality manufacturer Carbonit. The filter is designed for use in drinking water. Simply unscrew the filter housing, replace the filter, screw it shut and your shower filter is ready for use again for the next 3 months and protects you safely against legionella. The service life is about 200 showers. After that, the filter should be replaced. Please note that the water flow rate of approx. 6 l/min (at 2 bar) is quite high for such a filter, but can slightly reduce the usual water pressure. Scope of delivery: One membrane cartridge

Replacement filter cartridge for the Aqua Avanti Inline main and extension filter stages. Decalcification Inline The flowed through ion exchange resin reduces the hardness of the water. The decalcifying cartridge improves the taste of cold and hot drinks (especially to improve the aroma of coffee and tea) and protects household appliances against calcification. Use: The water flow should not exceed about 2 l / min. so that a noticeable descaling is guaranteed. The possible duration of use depends on the degree of hardness of the input water. Depending on the raw water hardness up to 1,900 l (hardness 5-10 dh) or 450 l (degree of hardness 11-25 dh) can be achieved as static quantity. The cartridge must be changed, if the typical chalk appearances like a film is built on the surface of the tea beverage, loss of tea aroma / coffee or calcification deposits on surfaces. According to DIN 1988, a change is required after 6 months at the latest. Only use with cold water. Protect from frost.

Ion exchange resin for the decalcifying cartridge (Article No .: 1083) Application: Water softening for drinking purposes (not for domestic hot water). Do not use with water below 6.5 pH. Description: Limescale removal by ion exchange Carbonate hardness is reduced. Can only be used in conjunction with decalcifying cartridge (Article No .: 1083). Dimension: 0.65 l, in the welding bag Power: Depending on the hardness of the source water, see operating instructions. Disposal after the end of service life in the household waste for reasons of hygiene, a change of at least half a year is recommended Resin color: light beige Flow: limitation to D = 1 l / min is recommended; higher flow rates are possible, but reduce the withdrawal rate Flow limitation via the setting of the ball valve (see operating instructions) or via a flow regulator (see spare parts & accessories) the pH of the filtered water drops slightly, so please do not use at pH values below 6.5 Notice: The consumption period entered on the cardboard sticker corresponds to a minimum shelf life. It is generally indicated to 6 months after bottling and ensures that the granules do not dry out (dehydration). The storage of larger quantities of refill packs therefore makes no sense. The granules are still fully effective after the deadline when it is slightly humid (such as moist soil). A return after the end of the consumption period is not possible. Use only with cold water. Protect from frost.

Pentair ™ 2-stage sediment filter for 20 "domestic water and well water filtration systems  The sediment filter cartridge ensures optimal prefiltering since filtering takes place in stages. The location is in the entrance area or alternatively directly behind the water pump of your own well. The water is freed from suspended matter such as rust etc. In the outer layer, which is approx. 5 cm thick, all substances larger than 25 µm are first stopped, in the inner layer there is an additional approx. 5 cm thick filter fleece with a filter density of 1 µm. As a result, the filter can not clog so quickly compared to conventional sediment filters.  Subsequent activated carbon cartridges are well protected by the second filter fleece with 1µm and the service life of the main filter cartridge can be extended by this.  Filter fineness: outside 25 µm, inside 1 µm Flow: 60 liters per minute at 4 bar pressure Temperature: Use only with cold water up to 30 ° C, protect against frost Dimensions: H 20 "(20 inches) 50.8 cm W 12 cm Filter material: blown polyester, food grade, NSF® certified Manufacturer: PENTEK / PENTAIR ™ USA  Ideal for use in our Aqua Fidelo 20 "filter units.

Effective reduction of dissolved iron in water up to 3 mg / l. The iron taste and smell of the water is reduced or completely removed. Suitable for the Aqua Fidelo domestic and well water filter systems. Pre-filtering of sediments prolongs the useful life of the iron filter. Notice: with ph values below 6.8, no ironing is possible. Solution: Previous increase of the ph-value z. Eg with a special Hydro Calcit cartridge (on request). Performance of the ironing cartridge 20 inches Reduction of ionized iron up to 3 mg/l Maximum values of the inlet water for iron removal pH 6.8 or higher Manganese max. 0.1 mg / l (with higher value please additionally use manganese filter) silicates max. 100mg/l Flow rate os water at 4 bar water pressure approx. max. 10-14 l/min Size 10 inches (51,0 x 11,5 cm) Temperature 1-40 Grad Celius;  protect from frost Typical usage rates over time under the same ideal conditions *    1mg/l 300.000 2mg/l 150.000 3mg/l 100.000 (* Useful life may vary)       

For all classic table water and under sink filter housings. This cartridge is also compatible with all Alvito water filter systems.The sediment filter is provided with antibacterial protection. Due to the special winding, the protection is distributed over a very large area. Upon contact of germs with the protective surface of their reproduction process is interrupted. Textile coarse and prefilter e.g.. for removal of heavily particulate polluted or polluted (turbidity) input water.Water that contains a high proportion of sediments affects the visual value of drinks and can in the worst case have a damaging effect on your system components.Use: The filter cartridge must be changed after six months. In principle, up to 10,000 liters of water may be filtered during this time. An earlier change may, however, be necessary if the water flow is noticeably reduced. The water flow is now up to 20 liters/min, depending on water pressure and filter housing.Protect from frost.

Here you will find original Big Blue BP filter bags, for the housing sizes 10" inch and 20" inch, in different µm finenesses. These fit Pentair PBH filter housings and are not compatible with other housings designed for coiled and cartridge filters.

The replacement filter fits all Grayl GeoPress outdoor and travel filters. These are the successor generation of the successful and well-known Grayl Ultralight Purifiers and not compatible with each other. It is small and affordable and filters out particulate matter, protozoa, bacteria and even viruses. In addition, it also reduces most chemicals. There is currently no other filter on the market that does so much than little Grayl. With this little companion you can safely drink from almost any source of water.     BPA-free     No batteries, chemicals, pump tips and other accessories needed     Removes: Pathogens in water (99.99% of viruses, 99.9999% of bacteria, 99.99% of protozoan cysts), including rotavirus, hepatitis A, norovirus, giardiasis, cryptosporidium, E. coli, cholera, salmonella, Ruhr & more     Filter: Particles (filters eg silt, microplastics, etc.); Activated carbon effectively adsorbs chemicals, pesticides, heavy metals, flavors and odors     Reduces chemicals and heavy metals     Works optimally at a pH between 5 and 9.5 (in nature hardly any water is available with a pH outside these limits)     NSF Protocol 42 and 53 for the removal of pathogens and chemicals; Conforms to the EPA Guidance and Protocol for Testing Microbiological Water Purifiers Note on storage - unused, the filter cartridges can be stored for 10 years without hesitation. Already used cartridges can be stored for 3 more years according to the manufacturer. If you want to play it safe, however, we recommend that you do not store a used cartouche for more than a year. Please always dry well before storing! Note - NEVER freeze a wet or damp filter.