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CTO Carbon Media Block Filter Elements

GreenStory Global Filtration Made in the USA

Our GreenStory GSGWF CB-C filter block series will meet your smaller commercial and light industrial filtering challenges of chlorine taste and odor.  A great new alternative to dealing with granular activated carbon (GAC) media, messy change-outs, and media tanks.


  • Meets NSF/ANSI standards 42, 53, and 61 for drinking water

  • Meets California Proposition 65 regulatory requirements for drinking water

  • Proprietary carbon blend formulations used for maximum adsorption

  • Elements will reduce foul odors, chlorine taste, and particulate matter

  • Polypropylene outer prefilter

  • Consistent density for controlled flow rates and pressure loss

  • No GAC By-pass or fluidizing

  • All materials used in production are FDA Title 21 compliant

  • Multiple micron ratings available

  • One-piece carbon block construction reduces bypassing


  • (C) Chlorine Taste and Odor


  • Media:  Granular Activated Carbon

  • Filtration level: 1,5, and 10 micron

  • Diameter OD:

    • 2.5” and 4.5” inch

  • Lengths:

    • Multiple options 10-40", see Part Number Builder

  • Micron ratings: 1, 5, and 10 

  • Flow Capacity per element length:

  • 1-3 gpm for 2.2"-2.4”x10”

  • 5-7 gpm for 4.2”x10”

  • Endcaps: Polypropylene


  • Food & Beverage

  • Drinking Water

  • RO Pre-Filtration

  • RO Post-Filtration

  • Process Water

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GSGWF Housing Series Options

GSGWF ICS Series, Single Element Housing


  • Large diameter element, up to 2.75" outer diameter (OD)

  • Filter element up to 30" length

  • Endcap style: DOE and 222

GSGWF ICC-DOE/222 Series, Multiple Element Housing


  • Filter elements and cartridges up to 2.75" outer diameter (OD)

  • Filter element up to 40" length

  • Endcap style: DOE and 222

  • Options from 4,5,7 elements

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