Ametek / Pentek CBC-20BB

Part #: 155312-43
Filter Type: Carbon Briquette
Micron Rating: Nominal 0.5
Dimensions:  20″ x 4-5/8″
Reduces: 90% of Chlorine, 99.5% Giardia, Cryptosporidium, Entamoeba, and Toxoplasmacysts and fine sediment particles down to 0.5 microns



  • Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
  • Micron ratings based on 85% or greater removal of given particle size.
  • CBC20-BB filter cartridges are capable of reducing 99.95% of Cryptosporidium and Giardia cysts.
  • CBC Series cartridges say “Not for residential sale in the state of California” on the filter label because they have not been submitted to California for testing. This is an expensive testing process that Pentair has chosen not to undergo at this time in order to keep the cost of the filters down.
  • Flow Rate (GPM): 8.5 psi @ 4 GPM
  • Chlorine Taste & Odor Reduction @ Flow Rate (GPM): >150,000 gallons @ 4 GPM (>567,800 liters @ 15.1 L/min)
  • Estimated capacity using 2ppm free available chlorine (FAC) with greater than 90% reduction.
  • Filter Media: Bonded PAC, End Caps: Polypropylene
  • Inner/Outer Wraps: Polyolefin, Netting: Polyethylene
  • Gaskets: Buna-N
  • Manufacturer Website