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Reverse Osmosis Filters for Clean Water | Mojawoda.com

Reverse osmosis filters – a complete guide

If you want to ensure clean, safe, and good-tasting water at home, in the kitchen, or in an aquarium, reverse osmosis filters are one of the most effective solutions. An RO system uses a semi-permeable membrane and properly selected cartridges to remove contaminants from water and improve its quality every day.

In this category, you will find mechanical cartridges, carbon cartridges, osmotic membranes, and post-osmosis filters, including remineralizing and specialist cartridges. Properly selected filtration components help maintain high system efficiency and make regular servicing easier.

Choosing the right filters for osmosis matters both for purification efficiency and for user comfort. Check which cartridges to choose, how often to replace them, and how to assemble a set tailored to your needs.

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Complete set of WodaRO cartridges for a full annual service of the RO10...
Complete set of WodaRO cartridges for a full annual service of the RO10 GOLD system with modules: AV-REDOX-L, BIOCERA, and AC-IL-GRD. The set includes original filters with PZH certification: mechanical cartridges (5 and 1 micron), carbon block, linear carbon cartridges, mineralizer, GOLDER cartridge reducing REDOX and raising pH, BIOCERA ionizer, and water structurer.
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Price 819.00 zł

Brand: WODARO

Reviews: 4
Pentair MERLIN TLC-350 (FRO360-M) osmotic membrane for reverse osmosis RO...
Pentair MERLIN TLC-350 (FRO360-M) osmotic membrane for reverse osmosis RO systems. Designed for domestic and semi-industrial applications (including kindergartens, offices, laboratories). It retains 96% - 99% of dissolved organic and inorganic contaminants, heavy metals, and some bacteria and viruses >= 0.001 µm. Performance: 1300 l/24 h .
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Price 739.00 zł

Brand: PENTAIR

Reviews: 3
VONTRON ULP21-4040 Osmotic Membrane (4040) for RO systems in car washes...
VONTRON ULP21-4040 Osmotic Membrane (4040) for RO systems in car washes and industrial applications. The ultra-low pressure series ensures high performance even at lower feed pressures. For desalination of surface and groundwater with a concentration below 2000 ppm. Salt rejection up to 99.5%, large filtration area of 7.9 m2. Certifications: NSF/ANSI 58, FDA, PZH.
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Price 709.00 zł

Brand: VONTRON

Reviews: 1
Original set of WodaRO GRAPHITE cartridges for a complete annual service of...
Original set of WodaRO GRAPHITE cartridges for a complete annual service of the RO10 system with the AV-REDOX-L ionizer, BIOCERA ionizer, and AC-IL-GRD structurer. The set includes certified PZH filters: mechanical cartridges of 5 and 1 micron, carbon block, linear carbon filters (including antibacterial), mineralizer, ionizing cartridges, and structurer. To maintain the taste, smell, and quality of water.
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Price 649.00 zł

Brand: WODARO

Reviews: 9
Osmotic membrane designed for the RO800 SMARTPURE system. Removes up to...
Osmotic membrane designed for the RO800 SMARTPURE system. Removes up to 99.99% of all dissolved organic and inorganic impurities, bacteria, viruses, chemical compounds, and heavy metals.
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Price 609.00 zł

Brand: WODARO

Reviews: 0
Osmotic membrane designed for the RO600 MINI system. Removes up to 99.99% of...
Osmotic membrane designed for the RO600 MINI system. Removes up to 99.99% of all dissolved organic and inorganic contaminants, bacteria, viruses, chemical compounds, and heavy metals.
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Price 599.00 zł

Brand: WODARO

Reviews: 0
Original set of WodaRO cartridges for the RO10 GOLD system intended for...
Original set of WodaRO cartridges for the RO10 GOLD system intended for service after 24 months. The set includes mechanical and carbon cartridges, a mineralizer, inline cartridges, a BIOCERA ionizer, and an AC-IL-GRD structurer. Filters with PZH certification support effective filtration, improve the taste and smell of water, and its final treatment after reverse osmosis.
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Price 569.00 zł

Brand: WODARO

Reviews: 7
Original set of waterRO GRAPHITE cartridges for the annual service of the...
Original set of waterRO GRAPHITE cartridges for the annual service of the RO8 reverse osmosis system with BIOCERA ionizer and AC-IL-GRD structurer. The set includes mechanical filters (5 and 1 micron), a carbon block, a GAC linear carbon filter, a dolomite mineralizer, and cartridges that improve water properties. The cartridges have PZH certification.
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Price 555.00 zł

Brand: WODARO

Reviews: 7
Original set of WodaRO GRAPHITE cartridges for the full annual service of...
Original set of WodaRO GRAPHITE cartridges for the full annual service of the RO9 system with the AV-REDOX-L ionizer and BIOCERA cartridge. The set includes mechanical and carbon filters, linear cartridges, a mineralizer, and ionizing elements. Filtration improves the taste and smell of water, reduces typical contaminants, and replenishes minerals after the reverse osmosis process.
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Price 519.00 zł

Brand: WODARO

Reviews: 8
RO 400 GPD osmotic membrane for RO400 systems. Thanks to its very fine...
RO 400 GPD osmotic membrane for RO400 systems. Thanks to its very fine pores, it effectively reduces dissolved organic and inorganic contaminants (including heavy metals) and helps limit certain bacteria and viruses. Contaminants are discharged into the sewage system, while high-purity water for drinking and cooking is supplied to the installation. Brand shipped randomly: Canature or Vontron.
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Price 469.00 zł

Brand: WODARO

Reviews: 1
Original set of WodaRO GRAPHITE cartridges for the annual service of the...
Original set of WodaRO GRAPHITE cartridges for the annual service of the RO10 system with the AV-REDOX-L ionizer and AC-IL-GRD structurer. The set includes PZH certified filters: mechanical (5 and 1 micron), carbon block, linear carbon cartridges (including antibacterial), dolomite remineralizer, ionizer, and structuring cartridge. To restore the full effectiveness of filtration, taste, and smell of water.
FREE DELIVERY
Price 399.00 zł

Brand: WODARO

Reviews: 6
Vontron 300 GPD is an osmotic membrane for reverse osmosis filters,...
Vontron 300 GPD is an osmotic membrane for reverse osmosis filters, responsible for the most precise stage of water treatment. It retains most dissolved organic and inorganic contaminants, including heavy metals, chemical compounds, and microorganisms, and also reduces water hardness. It is suitable for drinking water and aquarium applications. For longer lifespan, use efficient pre-filters.
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Price 399.00 zł

Brand: VONTRON

Reviews: 1
Set of original WodaRO GRAPHITE cartridges for a full annual service of the...
Set of original WodaRO GRAPHITE cartridges for a full annual service of the RO8 system with the AV-REDOX-L water ionizer and AC-IL-GRD water structurer.
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Price 369.00 zł

Brand: WODARO

Reviews: 9
Set of original cartridges for the wodaRO REDOX system for annual service....
Set of original cartridges for the wodaRO REDOX system for annual service. The set includes filters with PZH certification: 2x mechanical inline filter AC-IL-PP, 2x carbon inline filter AC-IL-GAC, mineralizing cartridge AC-IL-MIN, and inline ionizer AC-IL-R. Filtration removes sediments and chlorine, improves the taste and smell of water, while mineralization and ionization help achieve water with beneficial properties.
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Price 355.00 zł

Brand: WODARO

Reviews: 10
Original Aquaphor cartridge set for the MORION reverse osmosis system. The...
Original Aquaphor cartridge set for the MORION reverse osmosis system. The set includes cartridges certified by PZH: K5 (PP pre-filter up to 5 microns), K2 (carbon block with Aqualen, up to 3 microns), K7M (mineralization) and the RO-50S membrane for the newer version Morion RO-101S. Effective mechanical filtration, reduction of chlorine and organic compounds, and improvement of water taste.
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Price 354.00 zł

Brand: AQUAPHOR

Reviews: 7
Aqua Vita cartridge set for the complete annual service of the RO8 system...
Aqua Vita cartridge set for the complete annual service of the RO8 system with the AV-REDOX-L ionizer and AC-IL-GRD structurer. The set includes mechanical filtration (20 and 5 microns), a carbon block, and linear cartridges: carbon, mineralizer, REDOX ionizer, and structurer. Cartridges with PZH certification improve the taste and smell of water, reduce chlorine, and support the production of ionized and structured water.
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Price 345.00 zł

Brand: AQUA VITA

Reviews: 6
Set of original Aqua Vita cartridges for the annual service of the RO7...
Set of original Aqua Vita cartridges for the annual service of the RO7 system with BIOCERA A.A. water ionizer. The set includes mechanical filters (20 and 5 microns), a carbon block, a linear carbon filter, a mineralizer, and an ionizing cartridge. The filters improve the taste and smell of water, reduce chlorine and contaminants, and after osmosis, replenish the water with minerals.
FREE DELIVERY
Price 339.00 zł

Brand: AQUA VITA

Reviews: 8
Original set of WodaRO GRAPHITE cartridges for a full annual service of the...
Original set of WodaRO GRAPHITE cartridges for a full annual service of the RO7 system with BIOCERA ionizer. It includes filters certified by PZH: mechanical filter 5 microns FCPS5-AB (BACinix), carbon block FCBL10, mechanical filter 1 micron FCPS1, linear carbon filter AV-GAC-L, mineralizer AV-MIN-L, and BIOCERA ionizing cartridge. The set improves the taste and smell of water, reduces contaminants, and restores minerals after RO filtration.
FREE DELIVERY
Price 338.00 zł

Brand: WODARO

Reviews: 7
Large AQUAVITA cartridge set for reverse osmosis systems. It includes...
Large AQUAVITA cartridge set for reverse osmosis systems. It includes sediment cartridges of 20 µm and 5 µm, a carbon block, a carbon inline filter, mineralizers, and an AC-OM-75 osmotic membrane (75 GPD). It comprehensively purifies water, improves taste and odor, and enriches it with minerals. The set includes a free FR-FLUSH for membrane flushing.
FREE DELIVERY
Price 333.00 zł

Brand: AQUA VITA

Reviews: 1
Original set of WodaRO cartridges for the RO10 GOLD system intended for...
Original set of WodaRO cartridges for the RO10 GOLD system intended for service after 18 months. The set includes certified PZH filters: mechanical filter 5 microns FCPS5-AB (BACinix technology), carbon block FCBL10, mechanical filter 1 micron FCPS1, and the GOLDER ionizer that lowers REDOX and raises pH. The selection of cartridges supports the quality of filtration, taste, and smell of the water.
FREE DELIVERY
Price 329.00 zł

Brand: WODARO

Reviews: 2
Original set of WodaRO cartridges for the annual service of the RO10 GOLD...
Original set of WodaRO cartridges for the annual service of the RO10 GOLD reverse osmosis system with a structurer. The set includes certified PZH cartridges: mechanical (5 and 1 micron), carbon block, linear carbon filters (including antibacterial with nanosilver), mineralizer, and structuring cartridge AC-IL-GRD. It improves the taste and smell of water, reduces chlorine and impurities, and replenishes minerals after osmotic filtration.
FREE DELIVERY
Price 275.00 zł

Brand: WODARO

Reviews: 3
Original Aqua Vita cartridge set for the annual service of the RO8 system,...
Original Aqua Vita cartridge set for the annual service of the RO8 system, with mineralizer, alkalizer AV-L-BIO, and structurer AC-IL-GRD. The set includes mechanical cartridges (20 and 5 microns), a carbon block, and linear cartridges that help improve the taste and smell of water and enrich it after reverse osmosis filtration.
FREE DELIVERY
Price 259.00 zł

Brand: AQUA VITA

Reviews: 8
BIOCERA A-A is a mineral ionizing and alkalizing cartridge for water,...
BIOCERA A-A is a mineral ionizing and alkalizing cartridge for water, utilizing patented Biocera technology. It helps raise the pH and lower the ORP (oxidation-reduction potential), allowing the water to exhibit antioxidant properties. The cartridge is designed for installation in filtration systems. The package includes brackets, connectors, and a 1.5 m hose for free.
FREE DELIVERY
Price 249.00 zł

Brand: BIOCERA

Reviews: 3

Osmosis filters are a category for people who want to keep their reverse osmosis system in full working order and use water of stable, high quality. Regardless of whether you use osmosis at home, in the kitchen, or for aquarium applications, properly selected cartridges have a direct impact on purification efficiency, the taste and smell of the water, and the lifespan of the entire system.

Reverse osmosis is one of the most effective water filtration methods. This process involves passing water through a semi-permeable membrane, which allows many undesirable substances to be removed, such as heavy metals, bacteria, viruses, and even mineral salts. For the system to work properly, regular replacement of individual filter cartridges is essential.

What will you find in this category?
Mechanical filters, carbon filters, osmotic membranes, and post-osmosis filters, including carbon cartridges, remineralizing, structuring, ionizing, and other specialist cartridges. These are products intended for ongoing RO system servicing and for assembling complete filtration sets.

Reverse osmosis filters
Cartridges for reverse osmosis systems help maintain high water quality and the efficiency of the entire system.

What are reverse osmosis cartridges?

Reverse osmosis cartridges are replaceable filtration components installed in a water purification system. Each of them is responsible for a different stage of filtration, which is why proper selection and regular replacement are crucial for the efficiency of the entire system.

In practice, this means that a single cartridge does not work independently, but as part of a larger system. Only the cooperation of pre-filters, the membrane, and final filters makes it possible to obtain water that is clean and safe for everyday use.

Types of filters in a reverse osmosis system

Several types of cartridges are used in reverse osmosis systems, each performing a different function.

  • Mechanical filters – remove larger impurities such as sand and rust.
  • Carbon filters – eliminate chlorine and organic compounds, improving the taste and smell of the water.
  • Osmotic membranes – the heart of the system, responsible for removing the finest contaminants.
  • Post-osmosis filters – responsible for the final purification of the water and may include additional carbon filters, remineralizing cartridges, and specialist cartridges with unique health-supporting properties.

Why is it worth using osmosis filters?

A well-maintained RO system means convenience, safety, and predictable water quality every day.

  • Clean water – free from many contaminants, bacteria, and heavy metals.
  • Better taste and smell – especially thanks to carbon filters.
  • Savings – reducing the need to buy bottled water.
  • Convenience of use – easier servicing thanks to ready-made cartridge sets.
  • Support for everyday comfort – regular use of clean water promotes well-being.
Osmosis cartridge sets
A complete set of osmosis cartridges makes regular servicing easier and helps you select components that work with the system.

Sets of cartridges for reverse osmosis systems

Buying a set of reverse osmosis filters is a convenient solution because it provides all the most important components in one package. This is especially practical for periodic system servicing.

What can a typical set include?

  • mechanical filters,
  • carbon filters,
  • an osmotic membrane,
  • filters after the osmotic membrane, for example carbon, remineralizing, structuring, or ionizing filters.

What are the benefits of a complete reverse osmosis cartridge set?

  • it makes it easier to match components to the system,
  • it saves time when shopping,
  • it allows you to schedule servicing for one date,
  • it is often more cost-effective than buying cartridges separately.

How often should reverse osmosis filters be replaced?

The replacement frequency depends on water quality and intensity of use. However, standard recommendations help establish a safe service schedule.

Cartridge typeRecommended replacement intervalRole in the system
Mechanical filterevery 6 monthsRemoval of larger impurities such as sand and rust
Carbon filterevery 6–12 monthsReduction of chlorine and organic compounds, improvement of taste and smell
Osmotic membraneevery 3–5 yearsRemoval of the finest contaminants
Ionizing or specialist filterevery 12–24 monthsFinal water treatment depending on the cartridge function

The intervals given are indicative. The actual lifespan of cartridges depends, among other things, on raw water quality, system load, and the manufacturer's recommendations for a specific model.

In what order are filters installed in reverse osmosis?

The correct installation order is crucial for proper system operation and protection of the osmotic membrane.

  1. Mechanical filter – the first stage, retains larger impurities.
  2. Carbon filter – reduces chlorine and other organic compounds.
  3. Osmotic membrane – responsible for thorough water purification.
  4. Post-osmosis filter – the final stage improving water quality after the membrane.

How to maintain a reverse osmosis system?

For the system to work effectively for a long time, it is worth following basic operating rules.

  • Replace cartridges regularly according to the recommendations for a given filter type.
  • Clean the system at least once a year to reduce contaminant build-up.
  • Monitor water quality through periodic tests and observation of the device's operation.
  • Select cartridges according to the system design to maintain the correct filtration process.

How to choose the right osmosis filters?

When choosing, it is worth paying attention not only to the cartridge type itself, but also to the intended use of the system and the scope of the planned service.

  • Check whether you need a single cartridge or a full service set.
  • Determine which components require ongoing replacement: pre-filters, the membrane, or final cartridges.
  • Compare the functions of post-osmosis filters, for example remineralizing, carbon, or ionizing cartridges.
  • Consider use at home, in the kitchen, or in an aquarium.
  • Be guided by compatibility with your existing system.

FAQ – the most common questions about osmosis filters

What are reverse osmosis filters?

These are replaceable filtration components used in RO systems. They include, among others, mechanical filters, carbon filters, osmotic membranes, and final filters installed after the membrane.

How does reverse osmosis work?

Reverse osmosis involves passing water through a semi-permeable membrane, which helps remove many contaminants, including heavy metals, bacteria, viruses, and some mineral salts.

What types of cartridges are used in an osmosis system?

Most often these are mechanical filters, carbon filters, osmotic membranes, and post-osmosis filters, such as carbon, remineralizing, structuring, ionizing, and other specialist cartridges.

How often should mechanical and carbon filters be replaced?

As standard, mechanical filters are replaced every 6 months, and carbon filters every 6–12 months. The exact timing depends on water quality and intensity of use.

How often is the osmotic membrane replaced?

The osmotic membrane is typically replaced every 3–5 years. Its lifespan depends on the condition of the pre-filters, water quality, and proper system operation.

What are the benefits of buying a complete osmosis cartridge set?

A complete cartridge set makes servicing easier, gives greater confidence that the components match, and saves time. It is also a convenient way to gather all the necessary filters at once.

In what order are filters installed in an RO system?

Usually, the mechanical filter is installed first, then the carbon filter, then the osmotic membrane, and finally the post-osmosis filter responsible for the final purification of the water.

Are osmosis filters suitable for home use and aquariums?

Yes, depending on the system configuration, osmosis filters can be used both in home and kitchen conditions, as well as in aquarium applications.

Why is regular cartridge replacement so important?

Used cartridges lose effectiveness, and neglected servicing can reduce water quality and affect the operation of the entire system. Regular replacement helps maintain filtration efficiency and protect the osmotic membrane.