Pentek - CRF20-BB - 20" x 4.5" Radial Flow Carbon Block
CRF20-BB 20" x 4.5" Radial Flow Carbon Block Filter
Engineered for high-flow commercial and whole-house applications where chlorine, chloramine, and sediment reduction can't compromise flow rate
The Pentek CRF20-BB uses a radial flow configuration that allows water to flow from the outside in, maximizing surface area and minimizing pressure loss. At 5 GPM, this filter maintains just 2.5 PSI pressure drop while reducing chlorine, chloramine, and sediment down to 25 microns. Ideal for demanding applications where both filtration performance and flow rate matter.
Why Radial Flow Outperforms Standard Carbon Blocks
Radial Flow Design
Water enters through the outer surface and flows radially inward, using the entire filter media surface area for superior contact time and reduced pressure drop
High Flow, Low Pressure Loss
Only 2.5 PSI drop at 5 GPM flow rate thanks to the radial configuration, making it ideal for whole-house and commercial installations
Advanced GAC Media
Granular activated carbon block reduces chlorine, chloramine, taste, odor, and sediment down to 25 microns without sacrificing capacity
200,000 Gallon Capacity
Extended service life at 4 GPM flow rate reduces maintenance frequency and lowers total cost of ownership for high-demand applications
Big Blue Housing Fit
Standard 20" x 4.5" dimensions fit Pentek Big Blue and most standard 20-inch filter housings with 4.5-inch diameter capacity
Commercial Grade Construction
Built for continuous operation in well water treatment, commercial facilities, and whole-house systems where reliability is non-negotiable
Where the CRF20-BB Belongs
The Pentek CRF20-BB (model 155967-43) is designed for 20-inch Big Blue housings and similar large-capacity filter vessels. It excels in whole-house filtration systems, commercial water treatment, well water applications with chlorination, and any installation where chlorine or chloramine reduction is needed at sustained flow rates above 4 GPM. Compatible with standard 20" x 4.5" housing sizes from Pentek, Culligan, GE, Watts, and other major manufacturers.
Pentek has been engineering filtration media for residential, commercial, and industrial water treatment for over four decades. The CRF20-BB represents their commitment to solving high-flow carbon filtration challenges without compromise.
CRF20-BB 20" x 4.5" Radial Flow Carbon Block Filter
Engineered for high-flow commercial and whole-house applications where chlorine, chloramine, and sediment reduction can't compromise flow rate
The Pentek CRF20-BB uses a radial flow configuration that allows water to flow from the outside in, maximizing surface area and minimizing pressure loss. At 5 GPM, this filter maintains just 2.5 PSI pressure drop while reducing chlorine, chloramine, and sediment down to 25 microns. Ideal for demanding applications where both filtration performance and flow rate matter.
Why Radial Flow Outperforms Standard Carbon Blocks
Radial Flow Design
Water enters through the outer surface and flows radially inward, using the entire filter media surface area for superior contact time and reduced pressure drop
High Flow, Low Pressure Loss
Only 2.5 PSI drop at 5 GPM flow rate thanks to the radial configuration, making it ideal for whole-house and commercial installations
Advanced GAC Media
Granular activated carbon block reduces chlorine, chloramine, taste, odor, and sediment down to 25 microns without sacrificing capacity
200,000 Gallon Capacity
Extended service life at 4 GPM flow rate reduces maintenance frequency and lowers total cost of ownership for high-demand applications
Big Blue Housing Fit
Standard 20" x 4.5" dimensions fit Pentek Big Blue and most standard 20-inch filter housings with 4.5-inch diameter capacity
Commercial Grade Construction
Built for continuous operation in well water treatment, commercial facilities, and whole-house systems where reliability is non-negotiable
Where the CRF20-BB Belongs
The Pentek CRF20-BB (model 155967-43) is designed for 20-inch Big Blue housings and similar large-capacity filter vessels. It excels in whole-house filtration systems, commercial water treatment, well water applications with chlorination, and any installation where chlorine or chloramine reduction is needed at sustained flow rates above 4 GPM. Compatible with standard 20" x 4.5" housing sizes from Pentek, Culligan, GE, Watts, and other major manufacturers.
Pentek has been engineering filtration media for residential, commercial, and industrial water treatment for over four decades. The CRF20-BB represents their commitment to solving high-flow carbon filtration challenges without compromise.
Description
CRF20-BB 20" x 4.5" Radial Flow Carbon Block Filter
Engineered for high-flow commercial and whole-house applications where chlorine, chloramine, and sediment reduction can't compromise flow rate
The Pentek CRF20-BB uses a radial flow configuration that allows water to flow from the outside in, maximizing surface area and minimizing pressure loss. At 5 GPM, this filter maintains just 2.5 PSI pressure drop while reducing chlorine, chloramine, and sediment down to 25 microns. Ideal for demanding applications where both filtration performance and flow rate matter.
Why Radial Flow Outperforms Standard Carbon Blocks
Radial Flow Design
Water enters through the outer surface and flows radially inward, using the entire filter media surface area for superior contact time and reduced pressure drop
High Flow, Low Pressure Loss
Only 2.5 PSI drop at 5 GPM flow rate thanks to the radial configuration, making it ideal for whole-house and commercial installations
Advanced GAC Media
Granular activated carbon block reduces chlorine, chloramine, taste, odor, and sediment down to 25 microns without sacrificing capacity
200,000 Gallon Capacity
Extended service life at 4 GPM flow rate reduces maintenance frequency and lowers total cost of ownership for high-demand applications
Big Blue Housing Fit
Standard 20" x 4.5" dimensions fit Pentek Big Blue and most standard 20-inch filter housings with 4.5-inch diameter capacity
Commercial Grade Construction
Built for continuous operation in well water treatment, commercial facilities, and whole-house systems where reliability is non-negotiable
Where the CRF20-BB Belongs
The Pentek CRF20-BB (model 155967-43) is designed for 20-inch Big Blue housings and similar large-capacity filter vessels. It excels in whole-house filtration systems, commercial water treatment, well water applications with chlorination, and any installation where chlorine or chloramine reduction is needed at sustained flow rates above 4 GPM. Compatible with standard 20" x 4.5" housing sizes from Pentek, Culligan, GE, Watts, and other major manufacturers.
Pentek has been engineering filtration media for residential, commercial, and industrial water treatment for over four decades. The CRF20-BB represents their commitment to solving high-flow carbon filtration challenges without compromise.
