Cerametix Gravity Feed Water Filters

Price range: $117.00 through $137.00

(10 customer reviews)

Cerametix Gravity Feed Replacement Filters
combine a diatomaceous earth ceramic outer
shell with an inner carbon filtration core
to reduce fine sediment and a broad range
of unwanted contaminants while improving
water’s taste and odor.

The washable ceramic exterior provides
fine particulate filtration, while the
inner core addresses chemical contaminants.
Designed for compatible gravity feed systems.


This product is currently available
on backorder. Please contact us
for an updated restock timeline.

Key Benefits
  • Complementary filtration technologies:
    A ceramic outer shell works together
    with an inner carbon filtration core
    to address particles and chemical
    contaminants.
  • Fine particulate filtration:
    The ceramic exterior helps reduce
    fine sediment, bacteria, and cysts.
  • Broad chemical contaminant reduction:
    Published laboratory testing documents
    reduction of contaminants including
    chlorine, chloramine, fluoride,
    lead, arsenic, and selected VOCs.
  • Washable ceramic shell:
    The exterior can be cleaned according
    to the installation guide to help
    restore flow when sediment accumulates.
  • Improved taste and odor:
    The inner filtration core helps reduce
    substances that affect drinking
    water’s taste and smell.
  • Made in the USA:
    Manufactured for use in compatible
    gravity feed filtration systems.
What’s Included & How It Works

Includes:
Two (2) Cerametix gravity feed
replacement filters.

Ceramic Outer Shell

The diatomaceous earth ceramic
exterior provides a physical
barrier that helps reduce
fine sediment, bacteria,
and cysts.

Inner Filtration Core

The inner core provides additional
filtration to reduce unwanted
chemical contaminants and improve
taste and odor.

Both filters install in the upper
reservoir and should be used together.
The lower reservoir remains filter-free.

Compatibility & Water Source

Cerametix filters are designed
for compatible gravity feed systems.
Please confirm filter dimensions,
mounting requirements, and clearance
before ordering.

Use both Cerametix filters together.
Do not mix different filter types
within the same system.

For well water or other untreated
sources, water testing can help
determine whether additional
treatment is needed.

Do not rely on these filters alone
to make untreated surface water
or water of unknown microbial
quality safe to drink. An appropriate
disinfection step may be needed,
particularly where viruses
are a concern.

Our team is happy to help confirm
compatibility and suitability
for your water source.

Filter Performance & Testing

Cerametix combines ceramic
filtration with an inner core
selected for broad chemical
contaminant reduction.

The linked independent laboratory
report documents chemical reduction
testing of the AquaCera CeraMetix
filter, with reference to
NSF/ANSI Standards 42 and 53.

Testing with reference to an
NSF/ANSI standard is distinct
from certification of a finished
product. The linked report
provides the tested contaminants,
challenge concentrations,
and measured results.

Actual performance and service life
vary depending on incoming water
quality, contaminant concentrations,
water consumption, and operating
conditions.


View Cerametix Laboratory Testing (PDF)

Maintenance & Important Notes

The ceramic exterior can be
cleaned as directed in the
installation guide when sediment
buildup slows filtration.

Cleaning helps restore water flow;
it does not renew the contaminant
reduction capacity of the inner
filtration core.

Handle filters gently.
The ceramic shells are breakable.
Do not wash with soap, use hot
water, or perform red dye tests.

No pressure priming is required.
Follow the initial flushing
procedure before drinking
filtered water.

A mild new-filter taste may
occur initially and typically
clears with additional flushing.

Replacement timing depends on
water quality and usage.
Follow the product’s replacement
instructions, and contact us
if you need help determining
when to replace your filters.

Optional Add-On:
A Mineral Enrichment Bag is
available for customers who
prefer additional mineral
conditioning.

Installation Instructions & Support

Review the complete installation
and usage guide before installing
your Cerametix filters.


View Installation & Usage Guide (PDF)


Questions about compatibility,
availability, cleaning,
or replacement?
Our team is happy to help.

-

Description

Gravity Feed Filter Comparison

Which Gravity Feed Filter Is Right for You?

Greenfield gravity feed filters are designed to fit many leading gravity systems and support different water quality needs. The best choice depends on your water source, desired flow rate, contaminant concerns, and maintenance preferences.

NanoMetix™CeraMetix™Aquametix®NanoFiber™
Best ForCustomers wanting advanced broad-spectrum filtration for well or city waterCustomers needing strong sediment, microbial, and broad-spectrum contaminant reduction supportCity water users wanting strong broad-spectrum contaminant reduction with a faster drip rateCity water users wanting fast flow, low maintenance, and strong everyday filtration support
Recommended Water SourceCity or well water; untreated surface water may require additional disinfection depending on source conditionsCity, well, or untreated surface water; additional disinfection may be needed for untreated surface water depending on source conditionsBest suited for city waterBest suited for city water; not recommended for untreated well or surface water with sediment or iron concerns
Filtration ApproachDual-layer design using an electrokinetic outer layer with an internal carbon block coreCeramic outer shell with internal broad-spectrum contaminant reduction mediaCarbon-based broad-spectrum gravity filtration with faster flow than ceramic-style filtersElectro-positive nanofiber media designed for fast flow and sub-micron particle capture
Contaminant FocusDesigned to address particulates, chlorine/chloramine, VOCs, PFAS, fluoride, heavy metals, pesticides, herbicides, pharmaceuticals, and moreDesigned to address sediment, bacteria, cysts, chlorine, VOCs, fluoride, heavy metals, pesticides, herbicides, pharmaceuticals, and moreDesigned to address chlorine/chloramine, VOCs, fluoride, heavy metals, nitrates/nitrites, pesticides, herbicides, pharmaceuticals, and moreDesigned for city water concerns including particulates, taste, odor, and broad everyday contaminant reduction support
Microbial / Particulate SupportStrong fine particulate support; surface or wild water may still require disinfection depending on source conditionsStrongest choice here for sediment-heavy or biologically variable water sources; ceramic shell can be cleaned as neededNot the first choice for untreated or sediment-heavy waterStrong sub-micron particle capture, but not recommended for untreated well or wild water due to clogging concerns
Flow ProfileDesigned for high-performance gravity filtration with minimal flow restrictionTypically slower than non-ceramic options, especially as sediment accumulatesFaster drip rate than ceramic-style filtersFastest-flow option in this comparison
MaintenanceHandle gently; rinse/flush according to instructions and avoid damaging the pleated outer layerWashable ceramic shell can be gently cleaned to restore flowFlush before use; replace when flow, taste, or performance changesOuter wrap may be gently rinsed to restore flow; do not scrub like ceramic
System CompatibilityFits Berkey and many leading gravity systems; available in standard and imperial sizingFits Berkey and many leading gravity systems; imperial size not for Sertodo systemsFits Berkey and many leading gravity systems; imperial size not for Sertodo or Terra2 systemsFits Berkey and many leading gravity systems
Included FiltersOne filter for the top reservoirTwo filters for the top reservoirTwo filters for the top reservoirOne filter for the top reservoir
Mineral BagOptional mineral bag availableOptional mineral bag availableOptional mineral bag availableOptional mineral bag available
Important NotesDo not mix filter types. Not compatible with red dye tests. For untreated surface water, consider additional disinfection depending on source conditions.Do not mix filter types. Ceramic shells are breakable and should be handled gently. Not compatible with red dye tests.Do not mix filter types. Not compatible with red dye tests. Best for city water use.Do not mix filter types. Not compatible with red dye tests. Best for city water; sediment and iron can shorten lifespan or cause clogging.

Quick Guidance

Choose NanoMetix™ if...

  • You want our advanced broad-spectrum gravity feed option
  • You are filtering well or city water
  • You want strong contaminant reduction support without a ceramic shell

ChooseCeraMetix™ if...

  • You have well, wild, or sediment-prone water
  • You want a washable ceramic shell
  • You want strong support for microbial and fine sediment concerns

Choose Aquametix® if...

  • You primarily use city water
  • You want broad-spectrum chemical contaminant reduction support
  • You want a faster drip rate than ceramic-style filters

ChooseNanoFiber™ if...

  • You use city water and want the fastest-flow option
  • You want a simple, low-maintenance filter
  • Your water is not sediment-heavy or iron-heavy

Still not sure which gravity filter is right for your water?

We’re happy to help you choose based on your water source, gravity system, contaminant concerns, and preferred flow rate.

Contact Us for Help Choosing

Additional information

Weight3 lbs
Dimensions12 × 9 × 6 in
FILTER OPTIONS

STANDARD CERAMETIX, IMPERIAL SIZED CERAMETIX (NOT FOR SERTODO SYSTEMS)

MINERAL BAG (FOR BOTTOM RESERVOIR)

YES, NO

10 reviews for Cerametix Gravity Feed Water Filters

  1. Stephanie H. (verified owner) –

    Best filters ever! I will be purchasing more soon!

  2. John S. (verified owner) –

    Never had better tasting water after installing these in my Berkey . Knowing these filters can filter out so many contaminants gives me such peace of mind. Thanks so much!

  3. Suzanne Horowski (verified owner) –

    I have not put in the new filter just yet, but I am happy with the system so far.

  4. Katie (verified owner) –

    Love what the filter does and great customer service!

  5. Jordan M. (verified owner) –

    I always appreciate ordering from Greenfield. Their filters work great but more importantly they were open about when more would come in so I could make an informed order and they got them shipped quickly.

  6. Anonymous (verified owner) –

    This is my second set of Greenfield ceramic filters. I cold taste a difference the first time I drank a glass of of water from these filters, great taste! I also like the mineral bag, much needed.

  7. Trudy T. (verified owner) –

  8. Katelyn (verified owner) –

    Great products, through and through💕 quality and money well spent.

  9. Raed A. (verified owner) –

    the best filters for counter top. the newer ones were slow and had a weird taste

  10. Tricia (verified owner) –

    I was so glad to get my refill filters! The water is once again flowing well.

Only logged in customers who have purchased this product may leave a review.