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Pentair Pentair CBC-20BB 4.5 x 20 0.5 Mic Big Blue Carbon Block Filter 155312-43 155312-43

Pentair CBC-20BB 4.5" x 20" 0.5 Mic Big Blue Carbon Block Filter (155312-43)

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The Pentair Pentek CBC-20BB uses Bonded Powdered Activated Carbon (Bonded PAC) to create a 0.5 micron rated 20" carbon block. The Pentair Pentek CBC-20BB is built for Pentair Pentek Big Blue Filter Housing system and will also fit any 20" 'Big Blue' style filter housing. The Pentek CBC Series Cartridges feature particle reduction up to 0.5 microns, cyst reduction including Cryptosporidium and Giardia, chlorine, taste and odor reduction, and high dirt-holding capacity. These filters can be used in various residential, food service, commercial and industrial applications and work well as pre- or post filters in RO systems.


  • Micron Rating: 0.5 microns
  • Dimensions: 20" X 4.625"
  • Replace every 6-12 months
  • Reduces cysts, chlorine, taste, and odor
  • Bonded Powdered Activated (Bonded PAC) Carbon Block Filter
  • NSF Certified


PDF iconPentair Pentek CBC Series Carbon Block Spec Sheet

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