The Aquafilter FCCBKDF20BB is a 20-inch Big Blue water filter cartridge combining coconut-shell granular activated carbon (GAC) with KDF-55® media. Designed for compatible 20-inch Big Blue filter housings, it helps reduce chlorine, improve water taste and odour, and treat a range of unwanted substances in potable water.

The combination of activated carbon and KDF media provides complementary filtration processes. The cartridge is suitable for whole-house and other larger-capacity water filtration installations where its Big Blue format and higher flow capacity are required.

Coconut-shell activated carbon and KDF-55® media

The cartridge contains two principal filtration media:

• Coconut-shell granular activated carbon (GAC): helps reduce free chlorine and selected organic compounds, including substances that can affect water taste and odour.

• KDF-55® media: uses a redox process to help reduce certain dissolved contaminants, including iron and selected heavy metals.

The cartridge also incorporates polypropylene filtration layers to help retain the media within the cartridge.

Designed for 20-inch Big Blue housings

The FCCBKDF20BB is a large-diameter cartridge measuring approximately 20 inches long and 4.5 inches in diameter. It is designed for compatible 20-inch Big Blue filter housings.

It is not interchangeable with a standard 20-inch slimline cartridge, which has a smaller diameter of approximately 2.5 inches. Check your housing dimensions and connection arrangement before ordering.

Product specifications

• Brand: Aquafilter

• Model: FCCBKDF20BB

• Cartridge type: Granular activated carbon with KDF media

• Carbon type: Coconut-shell GAC

• Additional media: KDF-55®

• Cartridge size: 20" x 4.5"

• Approximate dimensions: 510 x 107 mm

• GAC media quantity: 1,450 g

• KDF media quantity: 90 g

• Nominal filtration rating: 4 micron

• Manufacturer flow figure: 15.1 L/min

• Recommended replacement interval: 6–12 months

• Maximum operating pressure: 6 bar

• Minimum water temperature: 2°C

• Maximum water temperature: 55°C

• End caps: Polypropylene (PP)

• Gasket: Silicone

• Body: HDPE

• End configuration: Double Open Ended (DOE)

Manufacturer performance figures are based on specified test conditions. Actual cartridge life and filtration performance depend on incoming water quality, contaminant levels, water usage and installation conditions.

What can this cartridge help reduce?

The Aquafilter FCCBKDF20BB is designed to help reduce:

• Free chlorine

• Selected volatile organic compounds (VOCs)

• Certain organic compounds

• Iron compounds

• Hydrogen sulphide

• Selected heavy metals

It can also help improve unpleasant tastes and odours associated with chlorine and other organic substances.

Actual contaminant reduction depends on water conditions and the manufacturer's test parameters. This cartridge should not be treated as a substitute for microbiological disinfection.

Recommended installation

For improved cartridge life, Aquafilter recommends installing a suitable sediment pre-filter upstream of the FCCBKDF series. A compatible sediment cartridge can help capture particles before water reaches the carbon and KDF media.

Replace the cartridge at the recommended interval, or sooner if water quality, flow or usage indicates that replacement is necessary.

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

Why choose the Aquafilter FCCBKDF20BB?

• Combines coconut-shell activated carbon with KDF-55® media.

• Helps reduce chlorine and improve taste and odour.

• Provides treatment for selected organic compounds, iron and heavy metals.

• Large 20-inch Big Blue format for compatible high-capacity filter housings.

• Suitable for point-of-entry and other compatible water filtration systems.

Choose the Aquafilter FCCBKDF20BB when you need a large-format GAC and KDF cartridge for a compatible 20-inch Big Blue housing.