Pentek - CBC-20BB - 20" x 4.5" Big Blue Carbon Block Filter 0.5 Micron 10 inch x 4.5 inch Big Blue Filters2664 The dual-media design makes it

The dual-media design makes it ideal for well water applications where iron bacteria

The CBC-20 fits all standard 20-inch filter housings with 2

🔧 Pro Tip: Always install a 5-20 micron sediment pre-filter upstream of the RFC20-BB to extend the carbon filter's life and prevent premature clogging from particulate matter

widely available from multiple manufacturers

Pentek - CBC-20BB - 20" x 4.5" Big Blue Carbon Block Filter 0.5 Micron 10 inch x 4.5 inch Big Blue Filters2664 The dual-media design makes itPentek Premium Filtration CBC 20BB 20" x 4. 5" Big Blue Carbon Block Filter Whole house carbon block filtration engineered for superior taste, odor, and chlorine reduction down to 0. 5 microns 0. 5 Micron Carbon Block 150,000 Gallon Capacity Cyst Reduction Certified FDA Compliant Materials The Pentek CBC 20BB uses bonded powdered activated carbon (PAC) in a solid block structure to reduce chlorine taste and odor while filtering sediment and cysts down