Product: Pentair Pentek CBC-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 4.5", 0.5 Micron
Brand: Pentek
Color: White
HIGH-CAPACITY SMALL PARTICULATE REDUCTION of bad taste & odor, chlorine and certain VOCs to provide great tasting drinking water
FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" carbon filter cartridge
EFFECTIVE AT FILTERING fine sediment chlorine taste and odor
NSF INTERNATIONAL tested and certified for your peace of mind
150,000 GALLON CAPACITY. Replace every 1 year or when you notice a drop in water pressure or water quality

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