What You Need to Know About the Carbon Block Water Filters

What You Need to Know About Carbon Block Water Filters

Carbon Block Water Filters are made of Coconut Shell Activated Carbon.

Model Number Breakdown CB-2025-5

CB ► Carbon Block

2025 ► Size, 20” by 2.5”

5 ► 5 Micron Carbon Block

The part number on our filters represents the media (first two letters); the length and diameter (first two numbers); and micron rating (last number).

What are the Carbon Block Water Filters applications?

  • Ideal for use in drinking fountains as well as under the counter systems with 10" x 2.5" housings.
  • Ideal for whole house water filters and higher flow rates (10" x 4.5" or 20" x 4.5" filter).
  • Work for treated water (municipal, town, government water).


    • If installed under the sink, this filter needs a dedicated drinking faucet to filter water at 2.8 LPM.
    • If installed for the whole house, this filter needs a pre-filter (sediment filter) to protect the carbon filter.
Carbon filters block easily without a sediment pre-filter.


What's the Carbon Block Filtration Media?

  • When water passes through the Carbon Block Filters, water is forced through the small pores of the Coconut Shell Activated Carbon Block Cartridge, where mechanical filtration and physical/ chemical adsorption reduce chlorine, taste and odour, sediments, and a wide range of contaminants of concern including VOCs.

How often should I replace the filters?

  • Replacement Frequency depends on water quality and usage.
  • Recommendation:
    • 10" x 2.5" Every Year.
    • 10" x 4.5" Every 6 months.
    • 20" x 4.5" Every Year.

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