Pentek - C1-20 - 20" x 2.5" Activated Carbon-Impregnated 5 Micron Filter Pentek (155141-43) 10"X4.5" Big Blue RFC-BB Radial Flow Carbon 25 Micron Filter Typical filter life

Typical filter life

With 4x the chloramine capacity of standard carbon blocks and 2x the chlorine capacity

Where the C1-20 Fits

and demanding whole-house

🔧 Pro Tip: Activated alumina performs best in a pH range of 5

Pentek - C1-20 - 20" x 2.5" Activated Carbon-Impregnated 5 Micron Filter Pentek (155141-43) 10"X4.5" Big Blue RFC-BB Radial Flow Carbon 25 Micron Filter Typical filter lifePentek 20" Carbon Impregnated Cartridge C1 20 Activated Carbon Impregnated Filter Dual purpose sediment and chemical filtration in a single economical cartridge 5 micron nominal rating Reduces chlorine taste & odor 20" x 2. 5" standard size 5,000 gallon capacity The Pentek C1 20 combines particulate filtration with chemical adsorption in a carbon impregnated cellulose cartridge. Rated at 5 microns nominal, it removes fine sediment while reducing