Equivalent specs
Pentek EP-20BB equivalent specs: CB-45-2005
Published specifications for the Pentek EP-20BB next to the CB-45-2005 we supply. This compares published data only; we have not physically tested the pair.
Part you have
EP-20BB(155583-43)
Pentek · Carbon block cartridge, 4.63″ × 20″, 5 micron
Part with matching published specs
CB-45-2005
Coconut shell carbon block, 4.5″ × 20″, 5 micron
| Specification | EP-20BB | CB-45-2005 |
|---|---|---|
| Size | 4.63″ × 20″ (maximum) | 4.5″ × 20″Published OD differs |
| Micron rating | 5 µm nominal | 5 µm nominal |
| Media | Bonded powdered activated carbon | Coconut shell activated carbon |
| Temperature | 40–180 °F | 40–180 °F |
| Initial pressure drop | 2.0 psi at 4.0 gpm | 4.5 psid at 7.0 gpm |
| Chlorine taste and odor capacity | >44,000 gal at 4.0 gpm | 26,000 gal at 7.0 gpm |
| End caps | Polypropylene | Polypropylene |
About this cartridge type
Carbon block cartridges are bonded activated carbon formed into a solid tube, used to reduce chlorine taste and odor while also trapping fine particles. The CB series uses coconut shell carbon with polypropylene end caps and a neoprene gasket, rated 40–180 °F. Before you switch, compare the published outside diameters, the end gasket style your housing uses, and the chlorine capacity at your flow rate.
Where these specs come from
Status: Specifications checked (published data only; not physically tested)
- Pentek EP series spec sheet (checked 2026-11-03)
- CB series manufacturer data sheet (checked 2026-11-03)
- Manufacturer's cross-over sheet listing this pairing (received Sept 8, 2026) (checked 2026-11-03)
Before you order
- Confirm your housing's cartridge length, diameter and end style before ordering. We check published specs; we have not physically tested this pairing.
- Published outside diameters differ (4.63″ vs 4.5″).
- Pressure drop and chlorine capacity are published at different flow rates.
- If your specification requires a certification, tell us which one; we confirm it against the listing for the exact part number.
Pentek and EP-20BB are trademarks or part numbers of their respective owners, used here only to identify the part being compared. FilterBridge Supply is not affiliated with or endorsed by Pentek.