20″x4.5″ Carbon Block 5Mic Cartridge


Whole House Big Blue 20″x4.5″ Carbon Block 5Mic CTO Cartridge

In stock

SKU: CTO-4.5x20x5m Category: Tag:

20"x4.5" Big Blue CTO Carbon Block 5 Micron Replacement Cartridges

These Whole House Big Blue Carbon filters employ a high grade carbon with industry-leading surface area allowing for the greatest efficiency of the carbon absorption.

Higher surface area extends the life of the cartridge, maximising time between cartridge changes.

Our Carbon Block Filters are manufactured from the highest quality raw materials.

The filter consists of a sediment 5 micron pre-filter screen to catch particulate matter in the water flow.

  • Filtration ate: 5μm.
  • Coconut shell activated carbon block filter.
  • Chlorine, organic compounds, taste and odor reduction.
  • No release of carbon fines.
  • Max. Flow: 0.75 gpm.
  • Max. Pressure: 125 psi.
  • Max. Temperature: 37°F.
  • After installing flush for few minutes to remove any carbon fines.
  • For water use only.
  • FREE Delivery Australia wide.



  • To be used on biologically safe water supply.
  • Flush for:
    • 5-10 seconds everyday before first time use.
    • 30 seconds when not using for 3 days.
    • 3 minutes when first using or replacing the cartridges.

Additional information

Weight 2.6 kg
Dimensions 53 × 12 × 12 cm


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