ChloraGuard Carbon Block - 1 Micron

Grouped product items
2.5" x 10" - 1 Micron MATRIKX ChloraGuard Carbon Block

SKU: 211699

In stock


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2.5" x 20" - 1 Micron MATRIKX ChloraGuard Carbon Block

SKU: 211700

In stock


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4.5" x 20" - 1 Micron MATRIKX ChloraGuard Carbon Block

SKU: 211702

In stock

Discontinued by Bulk Reef Supply

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Powered by GreenBlock Technology

Matrikx Chloraguard filters feature amazingly high capacity for chlorine reduction since it is made from a proprietary catalytic carbon that can deliver up to 4 times the capacity for monochloramine reduction. With a high dirt holding & absorption capacities, Matrikx Chloraguard filters not only meets but exceeds NSF and WQA standards.

  • 1 Micron Nominal Filtration
  • Proprietary Catalytic Carbon
  • Exceptionally Low-Pressure Drops
  • High Dirt Holding
  • Excellent Chemical Contaminant Reduction 


Four Sizes Available:

  • 2.5" x 10" (standard size)
  • 2.5" x 20"
  • 4.5" x 10" 
  • 4.5" x 20"



Micron Rating - 1 Micron Nominal

Chlorine & Taste Reduction Capacity - >30,000 Gallons @ 1 GPM*

Chloramine Reduction Capacity - >3,400 Gallons @ 0.5 GPM*

Pressure Drop Spec - 3.5 PSID @ 1 GPM*


*Ratings for 2.5" x 10" Filter


Matrikx ChloraGuard Spec Sheet


KX Technologies and Filtrex Technologies, both Marmon Water/Berkshire Hathaway companies, have teamed up to combine the very best of their Matrikx and GreenBlock carbon block lines, into a single world-class product offering. The new and improved product line is the result of decades of experience in R&D, design, formulation, and manufacture of high-performance carbon block filters. Matrikx ChloraGuard filters, powered by GreenBlock, are made from 100% coconut shell carbon, a renewable, and ecologically sustainable material. The carbon is processed into blocks using a unique binder system and proprietary manufacturing techniques to produce filters with a greater number of micro-pores and available carbon surface area, which display superior adsorption capacity and kinetic dynamics. The companies are committed to Research and Development to advance filtration technology in an ecologically sound way

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Product Questions

Is this the best or only product for removing chloromines? Also, where should it be placed in my RO/DI set up? I've got a 5 stage system.
Question by: James Sparkman on Mar 8, 2020, 3:55 PM
Hi there,

We recommend using two of these: https://www.bulkreefsupply.com/brs-universal-carbon-block-filter-1-micron.html for chloramines. They should go after your sediment filter and before the membrane.

Take care
Answer by: Thomas Billington on Mar 11, 2020, 12:06 PM
do you sell these in bulk?
Question by: Jesse on Jan 18, 2020, 9:49 AM
Hey there!

Unfortunately we do not, just in the single refills.

Take care
Answer by: Thomas Billington on Jan 22, 2020, 3:00 PM