Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filter – 5 Micron | 2 Pack

Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filter – 5 Micron | 2 Pack

$62.95
$62.95 $76.95
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Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filter – 5 Micron | 2 Pack
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Product Snapshot

FILTER TYPE Carbon Block Cartridge

Coconut shell carbon media

PACK FORMAT 2 Pack

Two replacement cartridges

SIZE 10" × 4.5" Big Blue

For compatible housings

MICRON RATING 5 Micron

Fine carbon filtration

APPLICATION Taste, Odour & Chlorine Reduction

For suitable systems

USE CASE Whole House & RO Pre-Filtration

Domestic and light-commercial use

Need help checking compatibility?

Send us your filter housing size, current cartridge photo, application and delivery postcode. Crystwater can help confirm whether this 10" × 4.5" carbon block cartridge is suitable for your system.

Housing size check Replacement support Local dispatch
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For cartridge matching, include your current cartridge photo, housing size and delivery postcode.

Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filter – 5 Micron | 2 Pack

Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filter – 5 Micron | 2 Pack

Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filters are designed for selected whole-house, under-sink, commercial and RO pre-filtration systems using standard 10" × 4.5" Big Blue compatible housings.

Made from coconut shell carbon block media, these 5 micron cartridges help reduce chlorine, taste and odour in suitable water filtration systems while supporting practical flow for domestic and light-commercial applications.

Supplied as a convenient 2 pack for routine replacement and maintenance.

Coconut Carbon Block 5 Micron Filtration 10" × 4.5" Big Blue Size 2 Pack Value Bundle
SKU: CW-CB-1045-5M-2PK
$62.95
$62.95 $76.95
✓
Coconut Shell Carbon Media Designed to help reduce chlorine, taste and odour in suitable filtration systems.
✓
5 Micron Carbon Filtration Combines carbon adsorption with fine particulate filtration in one cartridge.
✓
Big Blue Compatible Size Standard 10" × 4.5" format for compatible Big Blue style housings.
✓
Convenient 2 Pack Supplied as a value replacement bundle for routine maintenance.
Product Overview

Crystwater 10" × 4.5" Big Blue Coconut Carbon Block Filters are replacement cartridges for selected Big Blue compatible water filter housings.

These 5 micron coconut carbon block cartridges are commonly used to help reduce chlorine, taste and odour in suitable domestic, whole-house, under-sink, commercial and RO pre-filtration systems.

This product is supplied as a 2 pack, making it suitable for routine maintenance, spare cartridge storage or systems requiring regular replacement.
Specifications

Product type: Carbon block water filter cartridge

Brand: Crystwater

Pack format: 2 pack

Filter media: Coconut shell carbon block

Nominal size: 10" × 4.5"

Housing compatibility: Selected 10" × 4.5" Big Blue compatible housings

Micron rating: 5 micron

Application: Chlorine, taste and odour reduction in suitable filtration systems

Suitable use: Whole-house filtration, under-sink systems, RO pre-filtration and light-commercial filtration

Replacement type: Disposable cartridge

Note: Actual performance depends on water quality, flow rate, contact time, system design and replacement schedule.
Typical Applications

Typical applications include:

  • Whole-house water filtration systems
  • Big Blue compatible filter housings
  • Under-sink filtration systems using 10" × 4.5" cartridges
  • RO system pre-filtration
  • Chlorine, taste and odour reduction in suitable systems
  • Mains water filtration
  • Rainwater treatment where suitable pretreatment and disinfection are provided
  • Light-commercial water filtration systems

Important: This cartridge should be used only in suitable housings and filtration systems. It does not make unsafe water safe to drink by itself.
Selection Guide

This cartridge is designed for selected 10" × 4.5" Big Blue compatible filter housings.

Before ordering, check:

  • Existing cartridge length
  • Existing cartridge diameter
  • Filter housing size
  • Cartridge sealing style
  • Required micron rating
  • Intended application
  • Available flow rate and pressure

Do not order by appearance alone. Some housings may look similar but require different cartridge dimensions or sealing arrangements.

If you are unsure, contact Crystwater with a photo of your existing cartridge and filter housing before ordering.

Replace the cartridge according to water quality, flow rate, usage level and system requirements.

Replacement may be required when:

  • Water taste or odour returns
  • Flow rate drops noticeably
  • The cartridge has reached the system’s recommended service interval
  • The cartridge has been exposed to poor water quality or high sediment loading

As a general guide, many domestic systems replace carbon block cartridges every 3–6 months, but actual replacement frequency depends on water quality and usage conditions.
Usage, Handling & Storage

Flush the cartridge according to the filter system instructions before normal use.

Some initial carbon fines may appear during first flushing. Flush until the water runs clear before use.

Handling and storage notes:

  • Keep cartridges sealed until use
  • Store in a cool, dry place
  • Keep away from direct sunlight
  • Do not freeze
  • Use only in compatible housings
  • Do not exceed the system’s operating limits
  • Replace according to water quality, flow rate and usage conditions