PureSync Lite Replacement Filter Pack

• Complete three-stage replacement:
  Includes all three filtration cartridges
  needed for your PureSync Lite
  undersink system.
• Broad contaminant reduction:
  Complementary filtration technologies
  designed to address chlorine, chloramine,
  lead, mercury, PFOA/PFOS, VOCs,
  and certain emerging contaminants.
• Two filtration configurations:
  Choose replacement filters with or without
  dedicated fluoride reduction to match
  your existing system.
• Fine particulate filtration:
  Advanced filtration media help capture
  ultrafine particles, microplastics,
  and certain cysts.
• Improved taste and odor:
  Advanced carbon filtration helps reduce
  chlorine and other substances that affect
  drinking water’s taste and smell.
• Mineral preservation:
  Retains naturally occurring calcium,
  magnesium, and other dissolved minerals.
• Convenient maintenance:
  Recommended replacement every 6–12 months,
  depending on household size, usage,
  and water quality.

Both PureSync Lite replacement configurations
provide comprehensive drinking water filtration.
The difference is the specialized filtration
media used in Stage 3.

With Fluoride Reduction

This configuration incorporates advanced
filtration media designed to reduce fluoride
alongside other unwanted contaminants.
It provides an additional layer of
contaminant reduction for households
seeking broader water quality protection.

Fluoride may be present in municipal water
or occur naturally in groundwater.

Without Fluoride Reduction

This configuration uses complementary
filtration media to provide broad
contaminant reduction without a
dedicated fluoride-reduction cartridge.

It is a strong option for households
where fluoride reduction is not
a priority.

Choosing Your Replacement Pack

For routine maintenance, we recommend
selecting the configuration that matches
your existing PureSync Lite system.

If you’d like to change your filtration
configuration or aren’t sure which
filters you currently have, contact
our team before ordering.

Stage 1 — Electropositive Nanofiber Filtration

Advanced electropositive filtration technology
designed to capture bacteria, viruses, cysts,
and ultrafine particles while maintaining
strong water flow.

Stage 2 — Advanced Carbon Block Filtration

A premium American-made carbon block
manufactured with 100% coconut shell
activated carbon. Its 0.5-micron nominal
filtration rating provides fine particulate
filtration alongside broad chemical
contaminant reduction.

This stage is designed to reduce chlorine,
chloramine, lead, mercury, volatile organic
compounds (VOCs), PFOA/PFOS, and certain
emerging contaminants, including pharmaceuticals.

It also provides mechanical reduction of
microplastics and certain cysts, including
Cryptosporidium and Giardia.

Stage 3 — Advanced Contaminant Reduction

This stage provides additional contaminant
reduction through specialized filtration
media selected for your replacement
pack configuration.

With Fluoride Reduction:
Includes advanced media designed to address
fluoride alongside other unwanted contaminants,
providing an additional layer of filtration.

Without Fluoride Reduction:
Includes complementary filtration media
that contribute to the system’s broad
contaminant-reduction capabilities.

Together, these three stages provide
comprehensive drinking water filtration
while retaining naturally occurring
dissolved minerals.

The PureSync Lite replacement pack combines
complementary filtration technologies
selected for broad contaminant reduction.

The advanced Stage 2 carbon block has
performance data validated through internal
testing and independent third-party laboratories.

Its materials are certified by NSF International
to NSF/ANSI Standard 42 material requirements.
Contaminant-reduction performance is documented
separately from this certification.

Stage 3 provides additional contaminant
reduction using specialized filtration
media selected for the chosen configuration.
The fluoride reduction option includes
media designed to address fluoride
alongside other unwanted substances.

Manufacturer testing provides valuable
information about filtration capabilities
under defined conditions. Actual performance
and service life can vary depending on
incoming water quality, contaminant
concentrations, flow rate, household
usage, and other operating conditions.

Explore the available technical
documentation below.

Stage 1 — Nanofiber Performance Data

Stage 2 — Advanced Carbon Block Performance Data

Carbon Block Performance Data

For optimal performance, we recommend
replacing your PureSync Lite filters
approximately every
6–12 months.

Replacement frequency depends on household
size, water consumption, incoming water
quality, and overall system usage.

Larger households or homes with higher
water consumption will often benefit
from replacement closer to every
6–8 months,
while smaller households with lighter
usage may be able to go longer.

These recommendations reflect our
experience supporting Greenfield
filtration systems in real-world
household conditions.

Replacement instructions are included
with your filter pack to make ongoing
maintenance straightforward.

PureSync Lite is designed to retain
naturally occurring dissolved minerals,
including calcium and magnesium,
throughout the filtration process.

An optional inline mineralizer is
available for customers who prefer
additional mineral enrichment
or a different taste profile.

Because the filtration system already
retains naturally occurring dissolved
minerals, this add-on is entirely optional.

Replacement instructions are included
with your filter pack, and a downloadable
guide is also available below.

View Replacement Instructions (PDF)

Questions about filter replacement,
compatibility, or maintenance?
Our team is happy to help.