Keep your Aquafilter EXCITO-B under-sink drinking water filtration system performing effectively with the Aquafilter EXCITO-B-CLR-CRT Replacement Cartridge Set. This four-piece replacement set is designed specifically for the EXCITO-B filtration system and provides replacement cartridges for its sediment filtration, water softening, activated carbon and additional conditioning stages.

The cartridges work together to reduce suspended particles, chlorine, selected organic contaminants, iron and certain heavy metals, while helping to reduce water hardness and improve the taste and aroma of filtered water.

Featuring Aquafilter's 1/4-inch QM quick-connect fittings, the cartridges are designed for straightforward replacement without the need to change the complete filtration system.

Four replacement cartridges for the EXCITO-B system

The EXCITO-B-CLR-CRT contains four inline cartridges:

• AIPRO-20M-QM

• AISTRO-2-QM

• AICRO-3-QM

• Fourth cartridge as supplied for the EXCITO-B system – check the model identification before ordering.

Together, these cartridges replace the first four filtration stages of the EXCITO-B system.

Stage 1 – AIPRO-20M-QM sediment filter

The first cartridge uses spun-bonded polypropylene filtration media with a nominal 20-micron rating.

It helps capture suspended particles such as:

• Sand

• Rust

• Silt

• Sediment

• Other suspended solids

This initial filtration stage helps protect the downstream cartridges from larger particles.

Stage 2 – AISTRO-2-QM water softening and iron reduction

The second cartridge contains ion-exchange resin designed to reduce water hardness and lower the concentration of iron.

It helps address:

• Dissolved hardness minerals

• Certain iron compounds

• Water-quality issues associated with hard water

This conditioning stage also helps prepare the water for subsequent filtration.

Stage 3 – AICRO-3-QM activated carbon filter

The third cartridge uses coconut-shell activated carbon to reduce free chlorine and selected organic substances.

Its main benefits include:

• Reduction of free chlorine

• Improved taste and odour

• Reduction of selected organic compounds

• Additional treatment following sediment filtration and water conditioning

Stage 4 – Additional carbon and KDF treatment

The EXCITO-B system documentation identifies its fourth stage as an activated carbon and KDF filtration cartridge.

This combination is designed to provide additional reduction of chlorine, selected organic substances, iron and certain heavy metals. KDF media also has bacteriostatic properties that help inhibit bacterial growth within the cartridge.

Important: Aquafilter's current replacement-set listing identifies this fourth cartridge as AIPRO-4-QM, whereas some EXCITO-B system documentation identifies it as AICRO-4-QM. Please confirm the exact cartridge supplied before ordering.

Designed for convenient cartridge replacement

The EXCITO-B-CLR-CRT uses Aquafilter's QM quick-connect cartridge format, with 1/4-inch connections.

The cartridges are designed to fit the dedicated EXCITO-B system, allowing you to replace the four inline filtration stages while retaining the existing filtration unit, housing and drinking water tap.

Key features

• Genuine Aquafilter replacement cartridge set

• Four inline replacement cartridges

• Designed for the Aquafilter EXCITO-B system

• 20-micron polypropylene sediment filtration

• Ion-exchange water softening and iron reduction

• Coconut-shell activated carbon filtration

• Additional carbon and KDF treatment

• Helps reduce chlorine and selected organic contaminants

• Helps improve filtered water taste and aroma

• 1/4-inch QM quick-connect fittings

• Cartridge dimensions: approximately 2.5 × 12 inches

Technical specifications

Specification	Details
Brand	Aquafilter
Product model	EXCITO-B-CLR-CRT
Product type	Replacement inline cartridge set
Number of cartridges	4
Compatible system	Aquafilter EXCITO-B
First cartridge	AIPRO-20M-QM
Second cartridge	AISTRO-2-QM
Third cartridge	AICRO-3-QM
Fourth cartridge	Verify AIPRO-4-QM / AICRO-4-QM
Cartridge dimensions	2.5 × 12 inches
Connection type	1/4-inch QM quick connector
Nominal sediment rating	20 microns
Filtration technologies	Sediment, ion exchange, activated carbon and KDF
Ultrafiltration membrane	Not included

Cartridge replacement and maintenance

Regular cartridge replacement is important for maintaining filtration performance and water quality.

An indicative replacement interval for the EXCITO-B's four inline cartridges is approximately 3–6 months. Actual replacement frequency depends on incoming water quality, sediment levels, hardness and the volume of water filtered.

Consider replacing the cartridges sooner if you notice:

• A reduction in water flow

• Changes in the taste or smell of filtered water

• Increased sediment in the incoming supply

• Reduced performance of the water-softening stage

Follow the manufacturer's installation and flushing instructions whenever replacing cartridges.

Important compatibility information

This replacement set is designed for the Aquafilter EXCITO-B system. It should not be confused with replacement sets designed for other EXCITO or EXCITO-ST models, which can use different cartridge connections and configurations.

Please note: This set contains four inline cartridges only. It does not include the fifth-stage TLCHF-2T ultrafiltration membrane. If your EXCITO-B system also requires a membrane replacement, order the compatible TLCHF-2T separately.