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PureT - HQCBC Series - 20" x 4.5" Coconut Carbon Block Filter

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PureT - HQCBC Series - 20" x 4.5" Coconut Carbon Block Filter

The PureT HQCBC Series 20" x 4.5" Coconut Carbon Block Filter uses acid-washed coconut shell carbon to deliver superior chlorine reduction and sediment capture without the channeling or carbon fines common in granular media. Available in 1, 5, and 10 micron ratings, this NSF-42 certified filter fits standard 20-inch Big Blue housings and outperforms traditional GAC and PAC filters in whole-house, commercial, and well water applications.
SPECIFICATIONS

PureT HQCBC Series Technical Details

Dimensions 20" x 4.5"
Micron Ratings 1, 5, or 10 micron
Filter Media Acid-washed coconut shell activated carbon
End Caps & Wraps Polypropylene with EVA adhesive
Gasket Material Polyisoprene (natural rubber)
Temperature Range 40°F - 125°F
Certifications NSF-42 approved, FDA-compliant materials
Housing Compatibility Standard 20" Big Blue filter housings
INSTALLATION & USE

Filter Replacement Process

  1. Turn off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the Big Blue housing sump using a filter wrench and remove the spent cartridge
  3. Clean the housing interior and sump, inspect the o-ring for wear, and lubricate with food-grade silicone
  4. Insert the new PureT HQCBC carbon block filter and hand-tighten the sump until snug
  5. Turn water supply back on slowly and check for leaks, then flush the filter for 3-5 minutes before use
COMPATIBILITY

Application Range

The PureT HQCBC Series fits any standard 20" x 4.5" Big Blue filter housing and works across whole-house systems, commercial installations, well water treatment, point-of-use applications, and as pre-filtration for reverse osmosis systems. The solid carbon block structure eliminates the channeling and bypass issues inherent in loose granular carbon, making it ideal for applications requiring consistent chlorine reduction, VOC removal, and sediment filtration down to 1 micron. Choose micron rating based on water quality: 10 micron for general municipal water, 5 micron for moderate sediment loads, 1 micron for heavy particulate or well water with iron staining.

🔧 Pro tip: Always flush new coconut carbon blocks for a full 5 minutes at moderate flow to purge any residual carbon dust, even though these HQCBC filters produce significantly fewer fines than standard carbon blocks. If you're replacing a GAC filter with this carbon block, you'll notice water pressure may drop slightly due to the denser media structure, but filtration performance will improve dramatically.
The PureT HQCBC Series 20" x 4.5" Coconut Carbon Block Filter uses acid-washed coconut shell carbon to deliver superior chlorine reduction and sediment capture without the channeling or carbon fines common in granular media. Available in 1, 5, and 10 micron ratings, this NSF-42 certified filter fits standard 20-inch Big Blue housings and outperforms traditional GAC and PAC filters in whole-house, commercial, and well water applications.
SPECIFICATIONS

PureT HQCBC Series Technical Details

Dimensions 20" x 4.5"
Micron Ratings 1, 5, or 10 micron
Filter Media Acid-washed coconut shell activated carbon
End Caps & Wraps Polypropylene with EVA adhesive
Gasket Material Polyisoprene (natural rubber)
Temperature Range 40°F - 125°F
Certifications NSF-42 approved, FDA-compliant materials
Housing Compatibility Standard 20" Big Blue filter housings
INSTALLATION & USE

Filter Replacement Process

  1. Turn off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the Big Blue housing sump using a filter wrench and remove the spent cartridge
  3. Clean the housing interior and sump, inspect the o-ring for wear, and lubricate with food-grade silicone
  4. Insert the new PureT HQCBC carbon block filter and hand-tighten the sump until snug
  5. Turn water supply back on slowly and check for leaks, then flush the filter for 3-5 minutes before use
COMPATIBILITY

Application Range

The PureT HQCBC Series fits any standard 20" x 4.5" Big Blue filter housing and works across whole-house systems, commercial installations, well water treatment, point-of-use applications, and as pre-filtration for reverse osmosis systems. The solid carbon block structure eliminates the channeling and bypass issues inherent in loose granular carbon, making it ideal for applications requiring consistent chlorine reduction, VOC removal, and sediment filtration down to 1 micron. Choose micron rating based on water quality: 10 micron for general municipal water, 5 micron for moderate sediment loads, 1 micron for heavy particulate or well water with iron staining.

🔧 Pro tip: Always flush new coconut carbon blocks for a full 5 minutes at moderate flow to purge any residual carbon dust, even though these HQCBC filters produce significantly fewer fines than standard carbon blocks. If you're replacing a GAC filter with this carbon block, you'll notice water pressure may drop slightly due to the denser media structure, but filtration performance will improve dramatically.
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From $49.00
PureT - HQCBC Series - 20" x 4.5" Coconut Carbon Block Filter—
$49.00

Description

The PureT HQCBC Series 20" x 4.5" Coconut Carbon Block Filter uses acid-washed coconut shell carbon to deliver superior chlorine reduction and sediment capture without the channeling or carbon fines common in granular media. Available in 1, 5, and 10 micron ratings, this NSF-42 certified filter fits standard 20-inch Big Blue housings and outperforms traditional GAC and PAC filters in whole-house, commercial, and well water applications.
SPECIFICATIONS

PureT HQCBC Series Technical Details

Dimensions 20" x 4.5"
Micron Ratings 1, 5, or 10 micron
Filter Media Acid-washed coconut shell activated carbon
End Caps & Wraps Polypropylene with EVA adhesive
Gasket Material Polyisoprene (natural rubber)
Temperature Range 40°F - 125°F
Certifications NSF-42 approved, FDA-compliant materials
Housing Compatibility Standard 20" Big Blue filter housings
INSTALLATION & USE

Filter Replacement Process

  1. Turn off water supply and relieve system pressure by opening a downstream faucet
  2. Unscrew the Big Blue housing sump using a filter wrench and remove the spent cartridge
  3. Clean the housing interior and sump, inspect the o-ring for wear, and lubricate with food-grade silicone
  4. Insert the new PureT HQCBC carbon block filter and hand-tighten the sump until snug
  5. Turn water supply back on slowly and check for leaks, then flush the filter for 3-5 minutes before use
COMPATIBILITY

Application Range

The PureT HQCBC Series fits any standard 20" x 4.5" Big Blue filter housing and works across whole-house systems, commercial installations, well water treatment, point-of-use applications, and as pre-filtration for reverse osmosis systems. The solid carbon block structure eliminates the channeling and bypass issues inherent in loose granular carbon, making it ideal for applications requiring consistent chlorine reduction, VOC removal, and sediment filtration down to 1 micron. Choose micron rating based on water quality: 10 micron for general municipal water, 5 micron for moderate sediment loads, 1 micron for heavy particulate or well water with iron staining.

🔧 Pro tip: Always flush new coconut carbon blocks for a full 5 minutes at moderate flow to purge any residual carbon dust, even though these HQCBC filters produce significantly fewer fines than standard carbon blocks. If you're replacing a GAC filter with this carbon block, you'll notice water pressure may drop slightly due to the denser media structure, but filtration performance will improve dramatically.
PureT - HQCBC Series - 20" x 4.5" Coconut Carbon Block Filter | Isopure Water