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Pentair Pentek C1-20BB Big Blue Dual Purpose Carbon Water Filter, 20-Inch, Powdered Activated Carbon Cellulose Cartridge, 20" x 4.5", 5 Micron, 40,000 Gallon Capacity

Price: $55.03
Product prices and availability are accurate as of 2026-06-27 05:06:42 UTC and are subject to change. Any price and availability information displayed on https://www.amazon.com at the time of purchase will apply to the purchase of this product.
Availability: In Stock
In Stock
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Product Features

DUAL-PURPOSE FILTRATION IN ONE CARTRIDGE - Powdered activated carbon cellulose media reduces chlorine taste and odor while filtering sediment particles down to 5 microns for cleaner, better-tasting water

40,000+ GALLON CHLORINE REDUCTION CAPACITY - Long-lasting performance at 4 gpm means fewer replacements; designed for chlorinated water supplies only, as cellulose media is susceptible to bacterial attack

FITS ALL 20" BIG BLUE FILTER HOUSINGS - Drop-in replacement cartridge for Pentair Pentek Big Blue and other 20" x 4.5" heavy-duty filter housings with no adapters or modifications needed

NSF/ANSI STANDARD 42 CERTIFIED MATERIALS - Third-party tested and certified to meet material safety requirements; polyethylene outer netting adds structural strength while vinyl plastisol endcaps ensure a secure seal

BUILT FOR RELIABLE WATER FLOW - Polypropylene core construction maintains just 2 psi initial pressure drop at 4 gpm; operating temperature range of 40-125 degrees F for residential whole-house applications

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