Watts (WCBFF20) 20"x4.5" Big Blue High Performance Coconut Carbon Block
Core Performance Data
Filter Specifications
| Model Number | WCBFF20 |
| Manufacturer | Watts |
| Filter Type | Carbon Block (Coconut Shell) |
| Outer Diameter | 4.5 inches |
| Length | 20 inches |
| Micron Rating | 5 micron (nominal) |
| Chlorine Reduction | > 20,000 gallons @ 4 GPM |
Housing Fit and Use Cases
This Watts WCBFF20 cartridge is designed for all standard 20-inch Big Blue filter housings with 4.5-inch inner diameter openings. Ideal for whole-house filtration, point-of-entry systems, well water applications, and high-demand commercial installations where chlorine taste and odor removal is required alongside sediment reduction. The coconut shell carbon block construction offers superior adsorption capacity compared to standard GAC filters while maintaining the flow rates needed for residential and light commercial use. Replace every 6-12 months depending on water quality and household demand.
Core Performance Data
Filter Specifications
| Model Number | WCBFF20 |
| Manufacturer | Watts |
| Filter Type | Carbon Block (Coconut Shell) |
| Outer Diameter | 4.5 inches |
| Length | 20 inches |
| Micron Rating | 5 micron (nominal) |
| Chlorine Reduction | > 20,000 gallons @ 4 GPM |
Housing Fit and Use Cases
This Watts WCBFF20 cartridge is designed for all standard 20-inch Big Blue filter housings with 4.5-inch inner diameter openings. Ideal for whole-house filtration, point-of-entry systems, well water applications, and high-demand commercial installations where chlorine taste and odor removal is required alongside sediment reduction. The coconut shell carbon block construction offers superior adsorption capacity compared to standard GAC filters while maintaining the flow rates needed for residential and light commercial use. Replace every 6-12 months depending on water quality and household demand.
Original: $105.32
-65%$105.32
$36.86Description
Core Performance Data
Filter Specifications
| Model Number | WCBFF20 |
| Manufacturer | Watts |
| Filter Type | Carbon Block (Coconut Shell) |
| Outer Diameter | 4.5 inches |
| Length | 20 inches |
| Micron Rating | 5 micron (nominal) |
| Chlorine Reduction | > 20,000 gallons @ 4 GPM |
Housing Fit and Use Cases
This Watts WCBFF20 cartridge is designed for all standard 20-inch Big Blue filter housings with 4.5-inch inner diameter openings. Ideal for whole-house filtration, point-of-entry systems, well water applications, and high-demand commercial installations where chlorine taste and odor removal is required alongside sediment reduction. The coconut shell carbon block construction offers superior adsorption capacity compared to standard GAC filters while maintaining the flow rates needed for residential and light commercial use. Replace every 6-12 months depending on water quality and household demand.
