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NanoMetix Gravity Feed Filters – Advanced Nano-Technology Filtration for Well and City Water – FITS IN BERKEYS

Price range: $99.97 through $129.99

The NanoMetix filter for gravity feed systems uses a dual-stage media design: an electrokinetic pleated outer shell paired with an AquaMetix® carbon block core. Together, they reduce fine particulates, improve taste and odor, and address a broad range of contaminants. Recommended for those seeking reliable, high-performance filtration for untreated well or city water.

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Key Benefits:

  • Advanced Dual-Layer Filtration: Electrokinetic outer shell captures fine particulates while the AquaMetix® carbon block core targets chlorine, chloramines, VOCs, fluoride, and heavy metals.
  • Broad-Spectrum Reduction: Reduces over 200 contaminants, including PFAS, pesticides, herbicides, pharmaceuticals, and glyphosate.
  • Certified Performance: Components tested to ANSI/NSF standards for lead, VOCs, chlorine, chloramines, and pharmaceuticals.
  • Durable & Low Maintenance: Designed for gravity systems with minimal flow restriction.
  • Made in the USA

Recommended For:

  • Untreated well or city water where chemical, industrial, or agricultural contaminants are a concern.

Important Notes:

  • Avoid mixing filter types.
  • Handle gently to avoid damaging the pleated outer shell.
  • “New filter” taste may occur briefly during the initial flush.

Includes: One (1) NanoMetix filter for the top reservoir. Bottom chamber remains filter-free.

Lifespan: Typically 6–12 months depending on water quality and usage.

Compatibility: Fits Berkey and other leading gravity systems.

No Additives or Leaching: Media does not add anything to the water.

Lab testing is performed under controlled conditions. Real-world performance varies with source water quality.

Note on Surface / Wild Water: NanoMetix reduces particulate and a wide range of chemical contaminants. If using untreated surface water, microbial load varies significantly and may require an additional disinfection step (such as boiling or UV), depending on the source.

See Lab Testing & Install Guide

NANOMETIX TESTING OVERVIEW
NANOMETIX INSTALLATION GUIDE
UNDERSTANDING WATER FILTER TESTING

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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

Weight2 lbs
Dimensions10 × 8 × 4 in
ADD OPTIONAL MINERAL BAG

YES, NO

SELECT FILTER SIZE

STANDARD, IMPERIAL

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