Improve the quality, taste and clarity of your drinking water with the Aquafilter EXCITO-B 5-Stage Under-Sink Water Filtration System. Designed for installation beneath the kitchen sink, this compact drinking water filter combines sediment filtration, water softening, activated carbon, KDF media and ultrafiltration to provide multiple stages of water treatment.

The EXCITO-B uses Aquafilter's QM quick-change cartridge system, making routine cartridge replacement straightforward. Supplied with a dedicated chrome drinking water tap, connection fittings and flexible tubing, it provides a convenient point-of-use filtration solution without requiring a separate storage tank.

Five stages of water filtration

The Aquafilter EXCITO-B combines five specialist filtration stages, each designed to address different water-quality concerns.

Stage 1 – AIPRO-20M-QM sediment filter

The first stage uses a 20-micron polypropylene sediment cartridge to reduce suspended particles, including:

• Sand

• Rust

• Silt

• Clay

• Other suspended sediment

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

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

The second stage contains specialist ion-exchange filtration media designed to reduce water hardness and lower iron concentrations.

It helps address:

• Dissolved hardness minerals

• Certain iron compounds

• Water-quality issues associated with hard water

This stage also helps improve the overall quality of the water supplied to the subsequent filtration stages.

Stage 3 – AICRO-3-QM activated carbon filter

The third stage contains coconut-shell granular activated carbon, designed to reduce chlorine and selected organic contaminants.

Benefits include:

• Reduction of free chlorine

• Improved taste and odour

• Reduction of selected organic compounds

• Further treatment of water following sediment filtration and softening

Stage 4 – AICRO-4-QM activated carbon and KDF filter

The fourth stage combines coconut-shell activated carbon with KDF filtration media.

It is designed to reduce chlorine, selected organic contaminants and certain heavy metals, including metals such as lead, nickel and chromium.

This additional treatment stage helps improve the taste and aroma of filtered water.

Stage 5 – TLCHF-2T ultrafiltration membrane

The final stage uses Aquafilter's hollow-fibre ultrafiltration membrane, with a nominal membrane pore size of approximately 0.02 microns.

It provides fine filtration of suspended particles and helps separate certain bacteria and viruses from the water.

The membrane also reduces fine sediment such as rust, sand and silt that may remain after the earlier filtration stages.

Compact under-sink installation

The EXCITO-B is designed to fit beneath a kitchen sink, keeping the main filtration unit out of sight while providing filtered water through its dedicated drinking water tap.

Its QM push-in, push-out cartridge connections make replacement easier than conventional multi-housing systems.

The supplied kit includes:

• Five-stage EXCITO-B filtration system

• AIPRO-20M-QM sediment cartridge

• AISTRO-2-QM softening and iron-reduction cartridge

• AICRO-3-QM activated carbon cartridge

• AICRO-4-QM activated carbon and KDF cartridge

• TLCHF-2T ultrafiltration membrane

• Chrome drinking water tap

• Feed water connection adapter

• Flexible tubing

• Shut-off valve

• Connection fittings and installation accessories

• Installation instructions

Key features

• Five-stage under-sink drinking water filtration

• Combines sediment filtration, softening, activated carbon, KDF and ultrafiltration

• 20-micron polypropylene sediment pre-filter

• Specialist media for water hardness and iron reduction

• Coconut-shell activated carbon filtration

• KDF media for additional contaminant reduction

• 0.02-micron hollow-fibre ultrafiltration membrane

• QM quick-change cartridge connections

• Dedicated chrome drinking water tap included

• Compact design for installation beneath the kitchen sink

• No separate storage tank required

Technical specifications

Specification	Details
Brand	Aquafilter
Model	EXCITO-B
System type	5-stage under-sink water filtration
Filtration technology	Sediment, ion exchange, activated carbon, KDF and ultrafiltration
Stage 1	AIPRO-20M-QM
Stage 2	AISTRO-2-QM
Stage 3	AICRO-3-QM
Stage 4	AICRO-4-QM
Stage 5	TLCHF-2T
UF membrane pore size	0.02 microns
Nominal flow rate	1.9 litres per minute
Water supply pressure	3.5 bar
Water temperature range	2–45°C
Feed water connection	1/2 inch
Outlet tubing	1/4 inch
Dimensions (H × W × D)	438 × 100 × 360mm
Installation location	Under sink
Drinking water tap	Included

Cartridge replacement and maintenance

Regular cartridge replacement is important to maintain filtration performance.

Aquafilter provides the following indicative replacement intervals:

Cartridge	Recommended replacement interval
AIPRO-20M-QM sediment filter	3–6 months
AISTRO-2-QM softening cartridge	3–6 months
AICRO-3-QM carbon cartridge	3–6 months
AICRO-4-QM carbon and KDF cartridge	3–6 months
TLCHF-2T ultrafiltration membrane	6–12 months

Actual replacement intervals depend on incoming water quality, contamination levels and the volume of water filtered.

The system should be flushed for at least 10 minutes following installation or cartridge replacement, then left unused for 5–6 hours to allow the filtration media to condition as instructed by the manufacturer.

Installation and operating requirements

The EXCITO-B is designed for connection to a suitable cold-water supply. Its installation should follow the manufacturer's instructions and be carried out by a suitably trained installer.

Important installation considerations include:

• Use the supplied feed water connection and compatible 1/4-inch tubing.

• Install a suitable pressure regulator on the water inlet to protect the system from pressure surges and excessive pressure.

• Observe the correct water-flow direction when installing replacement cartridges.

• Secure quick-connect fittings with their safety clips.

• Flush the system after installation and cartridge replacement.

Important water-quality notice: The EXCITO-B must not be used with microbiologically contaminated water or water of unknown origin. Ultrafiltration should not be treated as a substitute for disinfection where the incoming water supply is unsafe.

The system is intended for suitable potable-water applications. It is a filtration and conditioning system, not a reverse osmosis unit, and should not be described as removing all dissolved salts or minerals.