
Pentek - EPM-20BB - 20" x 4.5" Modified Epsilon Carbon-Briquette 10 Micron Filter
Pentek EPM-20BB Technical Details
| Model Number | EPM-20BB |
| Dimensions | 20" x 4.5" (4-5/8" OD) |
| Filtration Rating | 10 Micron Nominal |
| Filter Media | Bonded PAC Carbon Block |
| Capacity | 30,000 Gallons |
| Pressure Drop | 4.0 psi @ 4 GPM |
| Temperature Range | 40°F to 180°F |
| End Caps / Wrap | Polystyrene / Polyolefin Endurawrap |
Installing Your EPM-20BB Filter
- Shut off water supply and relieve pressure from your 20" Big Blue housing by opening a downstream faucet
- Unscrew housing sump, remove old cartridge, and clean sump interior with mild soap and water
- Insert the EPM-20BB cartridge into the housing with the Endurawrap side facing outward, ensuring proper seal with the housing cap
- Reinstall sump hand-tight, turn water supply back on slowly, and check for leaks around the housing o-ring
- Flush the new cartridge for 5 minutes to remove any carbon fines and activate the media
Housing & Application Fit
The Pentek EPM-20BB fits all standard 20-inch Big Blue filter housings with 4.5" diameter capacity, including Pentek, Culligan, and most major brands. This cartridge is designed for whole-house, well water, and commercial applications where economical chlorine taste and odor reduction is needed alongside sediment filtration. The high-porosity carbon block construction maintains flow rates suitable for residential and light commercial installations while the Endurawrap pre-filter extends service life in moderate to heavy sediment conditions.
Pentek EPM-20BB Technical Details
| Model Number | EPM-20BB |
| Dimensions | 20" x 4.5" (4-5/8" OD) |
| Filtration Rating | 10 Micron Nominal |
| Filter Media | Bonded PAC Carbon Block |
| Capacity | 30,000 Gallons |
| Pressure Drop | 4.0 psi @ 4 GPM |
| Temperature Range | 40°F to 180°F |
| End Caps / Wrap | Polystyrene / Polyolefin Endurawrap |
Installing Your EPM-20BB Filter
- Shut off water supply and relieve pressure from your 20" Big Blue housing by opening a downstream faucet
- Unscrew housing sump, remove old cartridge, and clean sump interior with mild soap and water
- Insert the EPM-20BB cartridge into the housing with the Endurawrap side facing outward, ensuring proper seal with the housing cap
- Reinstall sump hand-tight, turn water supply back on slowly, and check for leaks around the housing o-ring
- Flush the new cartridge for 5 minutes to remove any carbon fines and activate the media
Housing & Application Fit
The Pentek EPM-20BB fits all standard 20-inch Big Blue filter housings with 4.5" diameter capacity, including Pentek, Culligan, and most major brands. This cartridge is designed for whole-house, well water, and commercial applications where economical chlorine taste and odor reduction is needed alongside sediment filtration. The high-porosity carbon block construction maintains flow rates suitable for residential and light commercial installations while the Endurawrap pre-filter extends service life in moderate to heavy sediment conditions.
Description
Pentek EPM-20BB Technical Details
| Model Number | EPM-20BB |
| Dimensions | 20" x 4.5" (4-5/8" OD) |
| Filtration Rating | 10 Micron Nominal |
| Filter Media | Bonded PAC Carbon Block |
| Capacity | 30,000 Gallons |
| Pressure Drop | 4.0 psi @ 4 GPM |
| Temperature Range | 40°F to 180°F |
| End Caps / Wrap | Polystyrene / Polyolefin Endurawrap |
Installing Your EPM-20BB Filter
- Shut off water supply and relieve pressure from your 20" Big Blue housing by opening a downstream faucet
- Unscrew housing sump, remove old cartridge, and clean sump interior with mild soap and water
- Insert the EPM-20BB cartridge into the housing with the Endurawrap side facing outward, ensuring proper seal with the housing cap
- Reinstall sump hand-tight, turn water supply back on slowly, and check for leaks around the housing o-ring
- Flush the new cartridge for 5 minutes to remove any carbon fines and activate the media
Housing & Application Fit
The Pentek EPM-20BB fits all standard 20-inch Big Blue filter housings with 4.5" diameter capacity, including Pentek, Culligan, and most major brands. This cartridge is designed for whole-house, well water, and commercial applications where economical chlorine taste and odor reduction is needed alongside sediment filtration. The high-porosity carbon block construction maintains flow rates suitable for residential and light commercial installations while the Endurawrap pre-filter extends service life in moderate to heavy sediment conditions.














