Cartridge sets for water entry are a key element of filtration systems installed on the main water supply line to a house or apartment. Their purpose is to purify water from contaminants and sediment before it is distributed throughout the entire system, which affects the quality of utility water in the whole building.
Complete cartridge sets help remove impurities present in water and also support the protection of fixtures, plumbing systems, and household appliances. In this category, you will find solutions tailored to the most popular filtration systems for water entry.
The most commonly chosen cartridges are available in sizes 10", Big Blue 10" and Big Blue 20", designed for various whole house filter housing configurations.
Set of cartridges for Big Blue type inline filters for comprehensive cold water filtration in the home. The set includes: mechanical cartridge FCPS20M20B made of polypropylene fiber (first stage, reduction of sand, silt, and rust), iron removal cartridge FCCFE20BB (reduction of iron ions, hydrogen sulfide, metallic taste and odor, pH correction), and carbon cartridge FCCBL20BB-S Silver made from coconut carbon (improvement of taste and odor, reduction of chlorine and organic contaminants).
Number of items / cartridges
3 szt.
Housing standard
Big Blue 20″
Cartridge length
20″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening, Iron removal, Manganese removal
Set of 3 cartridges for BIG BLUE 10" housings and HHBB10B bodies (standard 10" x 4.5"). 3-stage filtration: 1) 20-micron foam cartridge for sand, silt, and rust, 2) iron removal cartridge for reducing iron and manganese, 3) 10-micron carbon block improving taste and odor while reducing chlorine and selected organic compounds. For inline filters and whole house installations.
Number of items / cartridges
3 szt.
Housing standard
Big Blue 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Iron removal, Manganese removal
Cintropur sock filters with a filtration accuracy of 100 microns for NW500, NW650, and NW800 filters (also compatible with older series NW50, NW62, NW75). Designed to remove mechanical contaminants such as rust, sand, and silt. The set includes 5 pieces for use in industrial and commercial installations.
Aquafilter cartridge set for 4-stage water filtration in home installations. The set includes: mechanical cartridge FCPS20 (20 microns), softening cartridge FCCST with ion exchange resin and 10-micron pre-filtration, iron removal cartridge FCCFE with a final filter and 10-micron pre-filtration, and carbon cartridge FCCBL-S with coconut shell carbon. Improves the taste and smell of water, protects installations and devices.
Number of items / cartridges
4 szt.
Housing standard
Slim 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening, Iron removal, Manganese removal
Set of 3 WodaRO 10" filter cartridges for inline filters, under-sink systems, and central systems for the whole house. Three stages of purification: mechanical (foam 20 microns) , iron removal and carbon block 10 microns . The cartridges help reduce sediments (sand, rust), reduce iron, and improve the taste and smell of water. Standard 10" x 2.5", PZH certification.
Number of items / cartridges
3 szt.
Housing standard
Slim 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Iron removal
WaterRO FCBL10 carbon filter (activated carbon block) for standard 10" water filters. Effectively reduces chlorine, organic compounds (including VOCs), pesticide and herbicide residues, and improves the taste and smell of water. Recommended as a filtration stage after the mechanical filter in under-sink systems and central filtration. Set: 3 pcs.
FE10 WaterRO is a deionization cartridge for standard 10" housings (set 3 pcs. ). The active medium used reduces iron, improving the taste and smell of water while limiting the formation of rusty deposits in the installation and household appliances. The dual-zone construction with PP foam at the inlet protects the medium from mechanical contaminants, and the sealed housing enhances hygiene and safety of use.
Set of 3 cartridges 10" for inline, under-sink, and central systems. Filtration in 3 stages: mechanical (foam 20 µm) removes sand, rust, and silt; softening (ion exchange resin) reduces hardness and limits scale; carbon (10 µm carbon block) improves taste and odor, reduces chlorine and selected organic compounds. Cartridges with PZH certification.
Number of items / cartridges
3 szt.
Housing standard
Slim 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening
Set of 3 BIG BLUE 10" (4.5" x 10") cartridges for inline filters and whole house central systems. Three-stage filtration: mechanical (20-micron foam) removes sand, silt, and rust, softening with ion exchange resin reduces hardness, and carbon (10-micron block) reduces chlorine and unpleasant odors. Cartridges compatible with most BIG BLUE 10" housings andHHBB10B, has PZH certification.
Number of items / cartridges
3 szt.
Housing standard
Big Blue 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening
10" WaterRO Cartridge Set for Inline Filters and 3-Stage Systems for water filtration throughout the house. Included: sediment cartridge FCPS5 5 µm (sand, rust, silt), activated carbon GAC10 (chlorine reduction, taste and odor improvement) and carbon block FCBL10 (more precise "refinement" of water quality). You only replace the cartridges, without changing the housing.
Number of items / cartridges
3 szt.
Housing standard
Slim 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction
Set of 9 Aquafilter cartridges for water filtration: 3x FCPS20 (foam sediment), 3x FCCBHD (high-density coconut carbon), and 3x FCCBKDF (carbon with KDF media). Designed for pipe filters, reverse osmosis systems, and under-sink filters. They reduce solid contaminants, improve the taste and smell of water, and support the protection of the installation.
Number of items / cartridges
9 szt.
Housing standard
Slim 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Iron removal, Antibacterial action
Aquafilter FCCFE 10" (5 pcs.) is a de-ironing cartridge with active media for standard 10" housings. It effectively captures dissolved iron compounds, reduces metallic taste and odor in water, and helps limit rusty streaks and yellow stains. The cartridge has its own end filter that prevents granules from entering the installation. Suitable for inline filters, under-sink filters, and standing filters.
Big Blue water treatment cartridge set. The kit fits Big Blue housings and allows you to refresh your home filtration: it removes typical mechanical impurities, improves water clarity, and supports the protection of installations and devices. A good choice for replacing several cartridges at once.
Number of items / cartridges
3 szt.
Housing standard
Big Blue 10″
Cartridge length
10″
Filtration function
Sediment removal, Softening, Iron removal, Manganese removal
Big Blue 20" cartridge set for HHBB20B stations and Big Blue housings. Included: mechanical cartridge FCPS20M20B (first stage of filtration, reduction of solid contaminants), carbon cartridge FCCBHD20BB made from coconut shell (improves taste and odor, reduces chlorine and organic compounds), and carbon cartridge FCCBKDF20BB with KDF (helps remove heavy metals, iron, hydrogen sulfide, and pesticides).
Number of items / cartridges
3 szt.
Housing standard
Big Blue 20″
Cartridge length
20″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Iron removal, Antibacterial action
Set of 3 Big Blue 10" cartridges for the HHBB10B station and Big Blue type filter housings. The set includes: mechanical cartridge FCPS20M10B (stops sand, silt, and rust), iron removal cartridge FCCFE10BB (reduces iron compounds, limits stains), and carbon cartridge FCCBL10BB-S (removes chlorine and organic contaminants, improves taste and odor of water).
Number of items / cartridges
3 szt.
Housing standard
Big Blue 10″
Cartridge length
10″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening, Iron removal, Manganese removal
Set of 3 Aquafilter cartridges for Big Blue 20" filter housings (including HHBB20B station). Included: mechanical cartridge FCPS20M20B for removing sand, silt, and rust, softening cartridge FCCST20BB that reduces water hardness, and carbon cartridge FCCBL20BB-S Silver that improves taste and odor, reducing chlorine and selected contaminants. For cold drinking and utility water.
Number of items / cartridges
3 szt.
Housing standard
Big Blue 20″
Cartridge length
20″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Softening
Filter cartridge sets for water entry are a practical solution for people who want to improve water quality already at the stage of its entry into the installation. A properly selected set helps reduce the presence of mechanical impurities, improve the taste and odor of water, and better protect the home plumbing system and household appliances.
In this category, you will find cartridge sets for whole house filters installed at the water entry point, intended to protect the entire installation in a house or apartment. Sets are available for 2-stage, 3-stage, and 4-stage systems, and the most popular sizes are 10", Big Blue 10", and Big Blue 20". Depending on the configuration, the sets may include mechanical, carbon with activated carbon, softening, and iron removal cartridges.
Why are cartridge sets for water entry so important?
Water filtration at the building entry point makes it possible to stop many contaminants before they reach taps, fixtures, and household appliances. A flow-through water filter installed directly on the pipe purifies water as it flows, and its effectiveness depends on the type of cartridges used and the number of filtration stages.
Cartridge sets used in such filters help remove, among others, sand, rust, silt, and chlorine. Depending on the model and the type of filtration media used, some solutions may also support the reduction of substances affecting the taste and odor of water, water hardness, and even selected heavy metals. There are also cartridges designed to prepare water for further treatment stages, such as iron removal or demineralization.
Cartridges for water entry help protect the installation and improve the parameters of utility water.
Key benefits for the home and plumbing system
A properly selected cartridge set for a water entry filter provides benefits noticeable every day.
Removal of mechanical impurities – effective reduction of sand, rust, silt, and suspended solids.
Improved taste and odor of water – especially when carbon cartridges are used.
Protection of household appliances – lower risk of limescale and contaminant buildup in the washing machine, dishwasher, or boiler.
Protection of the water installation and fixtures – filtration helps limit the buildup of contaminants throughout the entire system.
Greater water use comfort – cleaner water improves everyday use in the bathroom and kitchen.
Lower detergent consumption – purified water may foam better, which supports more economical use of chemical agents.
Cost-effective solution – regular cartridge replacement is usually cheaper than removing the effects of deposits and equipment failures.
Easy installation and operation – cartridge replacement usually does not require specialist knowledge.
Types of cartridge sets for water entry filters
Sets for 2-stage filters
This is a basic but effective solution. It most often includes a mechanical cartridge and a carbon cartridge with activated carbon. The first stage stops larger contaminants such as sand and rust, while the second supports chlorine reduction and improves the taste and odor of water.
Sets for 3-stage filters
This is a more advanced setup, also referred to as a 3-stage system or a cartridge set for a triple water filter. The most common combinations here include mechanical, softening, and carbon cartridges. Depending on water quality, the softening cartridge can be replaced with an iron removal cartridge. Such a system removes both larger particles and finer contaminants, while also improving the taste and odor of water.
Sets for 4-stage filters
This is a very good solution available on the market for users expecting more comprehensive filtration. Such a set consists of four filtration levels: mechanical, softening, iron removal, and an activated carbon cartridge. This combination provides a wide range of water purification and high water quality for household use.
Set type
Most common configuration
Main application
2-stage
mechanical + carbon
sediment removal, chlorine reduction, improved taste and odor
3-stage
mechanical + softening or iron removal + carbon
more advanced installation protection and improved water parameters
4-stage
mechanical + softening + iron removal + carbon
comprehensive water purification from a wide range of contaminants
The choice of the number of filtration stages depends on water quality and the expected treatment result.
How to choose the right cartridge set?
When choosing cartridges for a water filter housing, it is worth paying attention to several key issues. Thanks to this, filtration will be effective and well matched to the conditions in a house or apartment.
Type of contaminants – different cartridges work better for sand and rust, while others are more suitable for chlorine, hard water, or problems with iron and manganese.
Number of filtration stages – the more complex the water problem, the more often it is worth considering a 3- or 4-stage system.
Compatibility with the housing – the set must fit the system you have and the appropriate housing size.
Cartridge size – the most popular are 10", Big Blue 10", and Big Blue 20".
Performance and intensity of use – the number of household members and actual water consumption are important.
Source water quality – municipal water and well water may require a completely different cartridge selection.
If the main problem at home is limescale, it is worth considering softening cartridges. For water with elevated iron and manganese content, iron removal solutions or cartridges that prepare water for further treatment will work better.
Which cartridges are most common?
Mechanical cartridges
They are responsible for retaining suspended solids and larger contaminant particles such as sand, rust, or silt. This is the first and very important stage of installation protection.
Carbon cartridges with activated carbon
They help reduce chlorine and substances affecting the taste and odor of water. Some solutions also use KDF media, which supports the removal of heavy metals and limits bacterial growth.
Softening cartridges
Used where hard water is the problem. They reduce excess minerals responsible for limescale buildup, such as calcium and magnesium, thus helping protect household appliances and the installation.
Iron removal cartridges
They work well for water with elevated iron and manganese content. They can help reduce rusty sediment, stains on fixtures, and deterioration of water taste.
Among popular cartridge manufacturers, users often pay attention to the Aquafilter brand, valued for its wide range and proven water filtration solutions.
Mechanical, carbon, softening, and iron removal cartridges can be combined into sets matched to actual water problems.
Cartridge replacement and maintenance
When should cartridges be replaced?
Regular replacement of cartridges in the whole house filter housing is crucial to maintaining filtration effectiveness. Usually, manufacturers recommend replacement every 4–6 months, depending on water quality and usage intensity.
How to replace cartridges?
Replacement is usually simple. In most cases, it is enough to use a wrench to unscrew the housing, remove the used cartridge, and insert a new one. For proper system operation, it is always worth following the manufacturer's instructions.
What should you remember during maintenance?
In addition to replacing the cartridges themselves, it is worth regularly cleaning the housing, checking the condition of the seals, and verifying the tightness of the head connections. Such maintenance helps avoid failures and maintain high water quality.
Why is it worth investing in complete sets?
A ready-made set of replacement cartridges for housings makes it easier to select the right components and streamlines filter servicing. The user receives all the necessary components for replacement, which shortens service time and allows full filtration effectiveness to be restored more quickly. It is a convenient, economical, and practical solution for both houses and apartments.
FAQ – frequently asked questions
What are cartridge sets for water entry?
These are sets of filter cartridges intended for filters installed on the main water supply line to a house or apartment. Their task is to purify water before it is distributed throughout the entire installation.
What contaminants do such sets remove?
Depending on the configuration, they can remove sand, rust, silt, suspended solids, chlorine, and substances affecting the taste and odor of water. Some cartridges also help reduce water hardness, iron, manganese, or selected heavy metals.
Which cartridge sizes are the most popular?
The most commonly chosen cartridges are sizes 10", Big Blue 10", and Big Blue 20". Before purchasing, it is worth checking which size fits your filter housing.
What is the difference between a 2-stage set and a 3-stage or 4-stage set?
A 2-stage set usually contains a mechanical cartridge and a carbon cartridge. A 3-stage system offers greater configuration possibilities, for example with a softening or iron removal cartridge. A 4-stage set offers the most comprehensive filtration, combining mechanical filtration, softening, iron removal, and a carbon cartridge.
How often should cartridges at the water entry point be replaced?
Replacement is most often recommended every 4–6 months, but the exact frequency depends on water quality and usage intensity. With higher water contamination, replacement may be needed more often.
Is cartridge replacement difficult?
No, in most cases it is a simple service task. Usually, it is enough to unscrew the housing with a wrench, remove the used cartridge, insert a new one, and carefully close the housing according to the manufacturer's instructions.
Do cartridge sets protect household appliances?
Yes, properly selected cartridges help reduce the buildup of contaminants and limescale in appliances such as the washing machine, dishwasher, or boiler. This can extend their service life and improve operating efficiency.
How do I choose a set for well water?
With well water, problems with iron, manganese, silt, and sediment are often important. In such a situation, it is worth considering sets with mechanical and iron removal cartridges, and it is best to base the choice on water test results.
Is a softening cartridge enough for very hard water?
With moderate hardness, it may be helpful, but with very high hardness values, a full softening system often proves to be a better solution. A softening cartridge in a whole house filter works mainly as support for protecting the installation and appliances.
Why is it worth buying a ready-made cartridge set?
A ready-made set makes it easier to match the components to a specific filtration system and speeds up replacement. It is a convenient solution that helps maintain filter continuity and high water quality at home.
