3-Stage Under-Sink Carbon Pre-Filter with Aquafilter
  • 3-Stage Under-Sink Carbon Pre-Filter with Aquafilter
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3-STAGE CARBON PRE-WATER FILTER UNDER SINK

KN-3S12G3C-X4-BL-AF 5905031170126
AQUAFILTER
Rating 

Three-stage pre-filter for under-sink cold water, based on original Aquafilter parts. The set includes a 1/2" connection and starter cartridges: FCPS20 (20 microns) + carbon cartridges made from coconut shells, including KDF. It helps remove mechanical impurities, reduce chlorine, and improve the taste and smell of water. The package includes, among other things, 2 pressure gauges, a wrench, Teflon tape, and BACinix discs.

Current price: 249.00 zł Tax included
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3-STAGE CARBON PRE-WATER FILTER UNDER SINK

3-STAGE CARBON PRE-WATER FILTER UNDER SINK

Three-stage pre-filter for under-sink cold water, based on original Aquafilter parts. The set includes a 1/2" connection and starter cartridges: FCPS20 (20 microns) + carbon cartridges made from coconut shells, including KDF. It helps remove mechanical impurities, reduce chlorine, and improve the taste and smell of water. The package includes, among other things, 2 pressure gauges, a wrench, Teflon tape, and BACinix discs.

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Description

The Aquafilter three-stage under-sink pre-water filter is a complete cold-water filtration system designed for installation under the sink. The set helps remove mechanical impurities, reduce chlorine, improve the taste and smell of water, and supports bacteriostatic action. It is a practical water filter for the home that can serve as an effective pre-stage before more advanced solutions such as reverse osmosis, an osmosis filter, a reverse osmosis system, or a reverse osmosis filter. The комплект includes original Aquafilter parts, a 1/2" connection, starter filter cartridges, 2 pressure gauges, a wrench, Teflon tape, and BACinix antibacterial discs.

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Complete 3-stage under-sink pre-filter

This set has been prepared as a complete, three-stage pre-filter for under-sink installation. It is based on original Aquafilter parts and is intended for conditioning cold drinking water or utility water.

The filtration system combines mechanical and carbon filtration, making it a functional solution wherever protection of the installation, improvement of the organoleptic properties of water, and convenient operation matter.

Key benefits

  • water purification,
  • chlorine reduction,
  • bacteriostatic action.

Included free of charge

  • 3 antibacterial centering discs,
  • wrench for loosening housings,
  • Teflon tape,
  • replacement FCPS20 cartridge made of polypropylene nonwoven fabric with 20 micron precision.
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How 3-stage filtration works

Effective water conditioning is provided by three specialized Aquafilter cartridges. Each stage handles a different range of tasks, so the entire water filtration system works comprehensively and logically, step by step.

Stage I – FCPS20 cartridge

FCPS20 is a polypropylene nonwoven cartridge with a precision of 20 microns. It is responsible for filtering mechanical, i.e. sediment impurities.

It is a very good cartridge for removing small fractions of solid contaminants from water, such as silt, sludge, and other particles larger than 20 microns. Such contaminants may be present both in well water and in mains water, where they often enter during transport.

This cartridge is typically used in under-sink and inline filters as protection for more expensive filter media and installation components. It helps protect carbon, softening, iron-removal cartridges, as well as the water installation and fixtures.

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The cartridge is made of high-quality polypropylene nonwoven fabric shaped so that water is filtered through the entire structure of the cartridge.

Cartridge life: 3–6 months depending on water quality.

Stage II – FCCBHD cartridge

FCCBHD is a 10-inch cartridge containing high-quality carbon from coconut shells. It is intended for conditioning cold drinking water or utility water.

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The cartridge is equipped with a final filter that prevents media particles from escaping outside the cartridge.

Advantages of the FCCBHD cartridge:

  • contains high-quality media (coconut shell carbon),
  • removes up to 99% of free chlorine from water,
  • removes organic contaminants,
  • removes phenol and benzene from water,
  • removes some pesticides,
  • improves the taste and smell of water,
  • fits most 10” inline housings available on the market,
  • the final filter prevents the media from escaping outside the cartridge.

Cartridge life: 3–6 months depending on water quality.

The FCCBHD cartridge should not be used for microbiologically contaminated water or water of unknown origin.

Stage III – FCCBKDF cartridge

FCCBKDF is a carbon cartridge filled with activated carbon from coconut shells and KDF media. It is intended for conditioning cold drinking water or utility water.

Activated carbon from coconut shells helps remove chlorine, chlorinated solvents, and aromatic hydrocarbons from water, and also improves the taste and smell of water. In addition, it reduces polyaromatic compounds, phenol, benzene, and organic substances.

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KDF media prevents the growth of bacterial flora on the filter media, lowers the concentration of heavy metals contained in water, such as arsenic, cadmium, lead, and mercury, as well as iron. It also helps remove hydrogen sulfide and pesticides.

Advantages of the FCCBKDF cartridge:

  • contains activated carbon and KDF media,
  • removes up to 99% of chlorine from water,
  • removes organic contaminants,
  • removes some pesticides,
  • removes iron compounds and hydrogen sulfide,
  • removes heavy metals (arsenic, cadmium, lead, mercury),
  • removes phenol and benzene from water,
  • improves the taste and smell of water,
  • has a final filter that prevents the media from escaping outside the cartridge.

Cartridge life: 3–6 months depending on water quality.

The FCCBKDF cartridge should not be used for microbiologically contaminated water or water of unknown origin.

3-piece housing – convenience of installation and servicing

The set uses 3-piece Aquafilter housings designed for quick installation and effective protection of the water system.

The innovative 3-piece housing makes cartridge replacement easier, because to open the housing you only need to unscrew the ring itself. There is no need to rotate the entire bowl, as in typical 2-piece designs.

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The transparent 10" bowl allows visual assessment of the level of contamination of the cartridge inside. This design supports convenient operating control and efficient service handling.

The 3-piece housing ensures maximum leak-tightness of the housing, and the head is equipped with a brass thread. The whole unit is made of high-quality materials, and the product was manufactured and assembled in the European Union.

The 3-piece Aquafilter housing consists of:

  • a head with a brass thread,
  • a ring,
  • a transparent bowl.
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Pressure gauges and BACinix centering discs

2 pressure gauges included

The set includes 2 pressure gauges, which allow pressure readings. This is a practical feature that makes it easier to assess system performance and helps determine when it is time to replace the filter cartridges.

3 antibacterial centering discs

The discs are made using BACinix™ antibacterial technology with nanosilver. It is a bacteriostatic agent that prevents the growth of microorganisms inside the filtration system, which allows longer storage time and protects against further microbiological contamination.

Centering disc:

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  • makes correct cartridge installation easier,
  • prevents the growth of bacterial flora,
  • reduces the risk of growth of pathogenic microorganisms,
  • made of the highest-quality materials in the European Union,
  • compatible with most cartridges available on the market,
  • ensures correct cartridge positioning when tightening the components,
  • reduces the likelihood of cartridge damage during installation,
  • BACinix technology based on nanosilver provides antimicrobial protection.

Operation and application

The filter is designed to work with cold water. Thanks to its 3-stage design, it effectively serves as a pre-filter in a home water conditioning system, improving everyday comfort and protecting subsequent components of the installation.

This solution works well as a standalone under-sink system or as a stage preparing water for more advanced devices, such as a reverse osmosis system. A properly selected filter cartridge at each stage helps reduce the load on the later filtration stages.

The cartridges should be replaced regularly. For FCPS20, FCCBHD, and FCCBKDF cartridges, the expected life is 3–6 months, depending on water quality and intensity of use.

Set contents

  • 3 three-piece housings on a plate (frame) – easy to unscrew, resistant to pressure surges,
  • 2 x 1/2 connections for installation connection,
  • 3 O-rings located inside the head,
  • 3 centering discs,
  • 2 pressure gauges,
  • 2 x FCPS20 cartridge,
  • FCCBHD cartridge,
  • FCCBKDF cartridge,
  • wrench for loosening the housings,
  • Teflon tape.
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Technical specification

Product typeThree-stage under-sink pre-filter
ApplicationFor cold water
Connection1/2"
Stage IFCPS20, polypropylene nonwoven, 20 microns
Stage IIFCCBHD, 10", coconut shell carbon
Stage IIIFCCBKDF, activated carbon from coconut shells + KDF media
Cartridge life3–6 months depending on water quality
Housing type3-piece, with transparent 10" bowl
Head threadBrass
Height39.00 cm
Depth16.50 cm
Width43.50 cm
Manufacture and assemblyEuropean Union
Product Details
KN-3S12G3C-X4-BL-AF
100 Items

Data sheet

Number of filtration stages
3 etap
Depth
165 mm
Height
390 mm
Width
435 mm
Connection size
1/2″
Filtration function
Sediment removal, Chlorine, taste and odor reduction, Iron removal, Antibacterial action
Installation form
Under sink
Installation location
Under sink
Filter media
KDF
Product type
Under-sink filter
Technology
Activated-carbon filtration, Mechanical filtration, Media filtration

Choose a set or individual cartridges. Replacement intervals depend on the cartridge and operating conditions.

Cartridge sets 2

Individual cartridges 5

Questions

What water is the 3-STAGE CARBON PRE-WATER FILTER UNDER SINK intended for?

The model is intended for cold drinking water or utility water. It should not be used for microbiologically contaminated water or water of unknown origin.

Which cartridges are included in the starter set?

The set includes 2 x FCPS20 cartridge, 1 x FCCBHD cartridge, and 1 x FCCBKDF cartridge. This means you get the cartridges needed to start the system, plus an additional spare FCPS20 sediment cartridge.

What does the first FCPS20 filtration stage remove?

The FCPS20 cartridge retains mechanical impurities such as silt, sludge, and other solid particles larger than 20 microns. As a result, it protects the subsequent cartridges and the water installation.

How does the FCCBHD carbon cartridge work?

FCCBHD contains coconut shell carbon and helps remove up to 99% of free chlorine, organic contaminants, phenol, benzene, and some pesticides. It also improves the taste and smell of the water.

What is the FCCBKDF cartridge responsible for?

FCCBKDF combines the action of activated carbon and KDF media. It reduces chlorine, organic contaminants, some pesticides, iron compounds, hydrogen sulfide, heavy metals, and improves the taste and smell of water. The KDF media also helps limit the growth of bacterial flora on the filter media.

How often do the cartridges need to be replaced?

The recommended cartridge life is from 3 to 6 months, depending on water quality and intensity of use. In practice, regular monitoring of the operating condition helps maintain high filtration efficiency.

What are the pressure gauges used for in this set?

The two pressure gauges allow pressure readings in the system. This is a convenient solution that helps monitor system performance and notice sooner when cartridge replacement may be needed.

What are the advantages of the 3-piece housing?

The 3-piece design makes cartridge replacement easier because only the ring is unscrewed, not the entire bowl. In addition, the transparent 10" bowl allows you to visually assess the dirt level of the cartridge, and the whole unit provides high leak-tightness and easy servicing.

Can the 3-STAGE CARBON PRE-WATER FILTER UNDER SINK work as a stage before reverse osmosis?

Yes, this pre-filter works very well as a stage preparing water for devices such as a reverse osmosis filter or a reverse osmosis system. Mechanical and carbon filtration help reduce the load on the later treatment stages.

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3-STAGE CARBON PRE-WATER FILTER UNDER SINK

3-STAGE CARBON PRE-WATER FILTER UNDER SINK

Three-stage pre-filter for under-sink cold water, based on original Aquafilter parts. The set includes a 1/2" connection and starter cartridges: FCPS20 (20 microns) + carbon cartridges made from coconut shells, including KDF. It helps remove mechanical impurities, reduce chlorine, and improve the taste and smell of water. The package includes, among other things, 2 pressure gauges, a wrench, Teflon tape, and BACinix discs.