20″ Coconut Shell Carbon Block Replacement Filter | 0.5 Micron

• Coconut shell activated carbon:
  Provides adsorptive filtration
  for chlorine and certain
  taste and odor concerns.
• High chlorine reduction capacity:
  Rated for up to 40,000 gallons
  of chlorine reduction under
  applicable performance conditions.
• Nominal 0.5 micron filtration:
  Provides fine particulate
  filtration through the
  carbon block structure.
• Economical replacement option:
  A practical choice for
  maintaining compatible
  legacy filtration systems.
• Improved water aesthetics:
  Helps reduce chlorine-related
  taste and odor.
• Broad housing compatibility:
  Designed for compatible
  2.5″ x 20″ filter housings.
• Legacy Greenfield compatibility:
  Fits applicable GW4, GW5,
  and GW7 stainless steel
  Multi-Round housings.

Activated carbon is widely
used in water filtration
because of its highly
porous structure and
ability to adsorb
certain chemical compounds.

Coconut shell activated
carbon provides extensive
internal surface area,
allowing water to come
into contact with
adsorptive carbon media
as it passes through
the cartridge.

The carbon block
construction combines
chemical adsorption
with physical
particulate filtration.

This allows the
cartridge to help
reduce chlorine
while capturing
certain suspended
particles.

The nominal 0.5 micron
rating describes the
cartridge’s particulate
filtration characteristics
under applicable
test conditions.

Important:
A nominal micron rating
does not mean that
every particle of
that size is removed,
and it does not
establish microbiological
purification performance.

Chlorine is commonly
used by municipal
water utilities
to disinfect
drinking water.

Although chlorine
plays an important
role in public
water treatment,
residual chlorine
can contribute to
noticeable taste
and odor.

This coconut shell
carbon block cartridge
is designed to reduce
chlorine through
activated carbon
filtration.

Primary Filtration Applications

• Chlorine reduction
• Improvement of chlorine-related taste and odor
• Fine particulate filtration
• Additional adsorption of certain organic compounds, depending on water chemistry and operating conditions

The cartridge has
a stated chlorine
reduction capacity
of up to
40,000 gallons.

Actual performance
depends on incoming
chlorine concentration,
flow rate, water
chemistry, and
operating conditions.

The stated capacity
should not be interpreted
as a guaranteed
service life for
every contaminant.

This cartridge is
designed for compatible
20″ slimline filtration
housings.

Cartridge Specifications

• Length: 20″
• Diameter: Approximately 2.5″
• Media: Coconut shell activated carbon block
• Nominal filtration rating: 0.5 micron
• Stated chlorine reduction capacity: Up to 40,000 gallons

Greenfield System Compatibility

• GW4 Stainless Steel Multi-Round System
• GW5 Stainless Steel Multi-Round System
• GW7 Stainless Steel Multi-Round System
• Compatible 2.5″ x 20″ filter housings

Important:
This is a slimline
carbon block cartridge
and should not be
confused with larger
diameter Big Blue
replacement cartridges.

Verify cartridge
dimensions and housing
compatibility before
ordering.

Greenfield offers
different replacement
filtration technologies
for compatible legacy
Multi-Round systems.

Coconut Shell Carbon Block

This economical
replacement option
focuses primarily
on chlorine reduction,
taste and odor
improvement, and
fine particulate
filtration.

AquaMetix Filtration

AquaMetix combines
activated carbon
with specialized
adsorptive media
to address additional
water quality concerns,
including fluoride
and certain heavy metals,
under applicable
testing conditions.

Which Should You Choose?
If your primary
concern is chlorine,
taste, and odor,
this coconut shell
carbon block may
be a suitable option.

If you are seeking
fluoride reduction
or broader specialized
contaminant treatment,
an AquaMetix replacement
option may be more
appropriate.

These filtration
technologies are
not interchangeable
in their contaminant
reduction capabilities.

Regular cartridge
replacement helps
maintain effective
activated carbon
filtration.

Replacement frequency
depends on incoming
water quality,
household water usage,
and cartridge capacity.

Although this filter
has a stated chlorine
reduction capacity
of up to 40,000 gallons,
actual service life
may be shorter
depending on
operating conditions.

For many residential
filtration applications,
carbon block cartridges
are replaced approximately
every 6 to 12 months,
subject to the
manufacturer’s
maintenance guidance.

Factors affecting
replacement frequency
include:

• Incoming chlorine concentration
• Daily water consumption
• Water flow rate
• Suspended particulate levels
• Other compounds competing for carbon adsorption sites

A noticeable change
in water taste or
odor may indicate
reduced chlorine
treatment effectiveness,
but it is not a
reliable indicator
of every contaminant
or remaining
cartridge capacity.

Follow the appropriate
replacement and
flushing instructions
for your system.

This coconut shell
carbon block cartridge
is primarily intended
for chlorine reduction
and aesthetic water
quality improvement.

It should not be
considered equivalent
to specialized
contaminant reduction
cartridges such as
AquaMetix.

This cartridge is not
intended for fluoride
reduction.

It should also not
be relied upon
as the sole treatment
for microbiologically
unsafe water or
contaminants requiring
specialized filtration.

Actual reduction
performance depends
on water quality,
cartridge specifications,
flow rate, and
operating conditions.

Not sure whether
this cartridge
is compatible
with your
Multi-Round system?

Our team can help
identify your
existing filtration
configuration and
recommend the
appropriate replacement.

Simply send us
a photo of your
system through
website chat,
or call
208-462-0626.