The Aquafilter FCCBKDF210BB is a 10-inch Big Blue multi-media water filter cartridge combining coconut-shell granular activated carbon (GAC), KDF-55® media and ion-exchange softening resin. Designed for compatible 10-inch Big Blue filter housings, it helps reduce chlorine, improve water taste and odour, treat selected dissolved contaminants and reduce water hardness.

By combining three different filtration media in one cartridge, the FCCBKDF210BB offers a practical solution for water filtration and limited-capacity softening in compatible point-of-use and point-of-entry systems.

Three filtration media in one cartridge

1. Coconut-shell granular activated carbon (GAC)

The coconut-shell activated carbon helps reduce free chlorine and selected organic compounds that can affect water taste and odour. It also helps reduce certain solvents and other organic substances.

2. KDF-55® media

KDF-55® uses an oxidation-reduction (redox) process to help reduce chlorine and selected dissolved contaminants, including certain heavy metals, iron and hydrogen sulphide. It also helps inhibit bacterial growth within the filtration media.

3. Ion-exchange softening resin

The strongly acidic cation-exchange resin helps reduce water hardness by exchanging calcium and magnesium ions. This can help reduce the hardness contribution of incoming water, although the cartridge has a finite softening capacity and is not a replacement for a dedicated water softener.

Designed for 10-inch Big Blue housings

The FCCBKDF210BB measures approximately 9 7/8 inches long and 4.5 inches in diameter.

It is designed for compatible 10-inch Big Blue filter housings. It is not interchangeable with standard 10-inch slimline cartridges, which have a diameter of approximately 2.5 inches.

Always check your existing cartridge dimensions and housing compatibility before ordering.

Product specifications

• Brand: Aquafilter

• Model: FCCBKDF210BB

• Cartridge type: Multi-media GAC, KDF and softening cartridge

• Activated carbon: Coconut-shell granular activated carbon

• Additional media: KDF-55® and strongly acidic cation-exchange resin

• Cartridge size: 9 7/8" x 4.5"

• Approximate dimensions: 250 x 107 mm

• GAC media quantity: 350 g

• KDF media quantity: 90 g

• Ion-exchange resin quantity: 0.5 litres

• Nominal flow rate: 7.6 L/min

• Chlorine-treatment capacity: 33,250 litres under specified manufacturer test conditions

• Maximum ion-exchange capacity: 1.40 m³ × °dH

• Softening performance test figure: 715 litres under specified test conditions

• Recommended replacement interval: 3–6 months

• Maximum operating pressure: 6 bar

• Minimum feedwater temperature: 2°C

• Maximum feedwater temperature: 55°C

• End configuration: Double Open Ended (DOE)

Manufacturer performance figures are based on defined test conditions. Actual treatment capacity and cartridge life depend on incoming water quality, chlorine concentration, water hardness, flow rate and water consumption.

What can the FCCBKDF210BB help reduce?

The three filtration media provide complementary treatment benefits:

• Chlorine: Activated carbon and KDF media help reduce free chlorine.

• Unpleasant taste and odour: Coconut-shell activated carbon helps reduce substances responsible for undesirable tastes and smells.

• Selected organic compounds: Activated carbon helps reduce certain organic contaminants, including selected solvents.

• Selected heavy metals: KDF-55® helps reduce certain dissolved metals under suitable operating conditions.

• Iron and hydrogen sulphide: KDF media is designed to help reduce these substances.

• Water hardness: Ion-exchange resin helps reduce calcium and magnesium ions.

The degree of reduction depends on the concentration of contaminants and operating conditions. This cartridge is not a universal contaminant-removal solution and should not be considered a substitute for microbiological disinfection.

Water softening performance

The FCCBKDF210BB contains 0.5 litres of ion-exchange resin to help reduce calcium and magnesium, the principal contributors to water hardness.

Aquafilter specifies a maximum ion-exchange capacity of 1.40 m³ × °dH for this model. Its catalogue also gives a softening performance test figure of 715 litres under specified conditions, including water hardness of 2°dH.

This is a limited-capacity softening solution compared with a dedicated water softener. The cartridge is best understood as a combined filtration and supplementary softening cartridge rather than a replacement for a full water-softening system.

Up-flow filtration design

The FCCBKDF series uses an up-flow filtration arrangement, allowing water to travel upwards through the filtration media.

This design provides extended contact time between the water and the media, supporting the adsorption and treatment processes.

Non-woven polypropylene filtration layers help retain the media inside the cartridge and prevent it from being washed out.

Installation and maintenance

Install the FCCBKDF210BB in a compatible 10-inch Big Blue filter housing, following the housing manufacturer's instructions.

For improved cartridge life, Aquafilter recommends installing a suitable sediment pre-filter upstream. Compatible FCPS or FCPP sediment cartridges can help capture suspended particles before water reaches the GAC, KDF and softening media.

The recommended replacement interval is 3–6 months. Replace the cartridge sooner if water quality, flow or usage indicates that it is exhausted.

Flush the cartridge before use according to the manufacturer's instructions.

This cartridge is designed for cold potable water. Do not use it with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the filtration system.

Why choose the Aquafilter FCCBKDF210BB?

• Combines coconut-shell activated carbon, KDF-55® and ion-exchange resin.

• Helps reduce chlorine and improve water taste and odour.

• Provides treatment for selected organic compounds and dissolved contaminants.

• Helps reduce calcium and magnesium to provide supplementary water softening.

• Uses an up-flow filtration arrangement.

• Fits compatible 10-inch Big Blue filter housings.

• Combines three complementary treatment processes in one cartridge.

Choose the Aquafilter FCCBKDF210BB when you need a combined carbon, KDF and softening cartridge for a compatible 10-inch Big Blue water filtration system.