GREATER CHLORINE TASTE and ODOR REDUCTION than competitive 10 carbon blocks
FITS ALL 20" Big Blue or other heavy duty housings and can replace any 20" x 4.5" carbon filter cartridge
HIGH POROSITY DESIGN helps the cartridge from plugging before its adsorption capacity is exhausted
NSF INTERNATIONAL tested and certified for your peace of mind
44,000 GALLON CAPACITY. Replace every year or when you notice a drop in water pressure or water quality

 
 Pentair Pentek EP Series Carbon Block Cartridges are manufactured using a process that yields a cartridge with a nominal 5- filtration rating and high dirt-holding capacity. A high porosity design helps the cartridge from plugging before its adsorption capacity is exhausted, maximizing the utilization of the carbon while maintaining low pressure drop. These cartridges are protected by a uniquely formulated polyolefin bilaminate pre-filter, designed to significantly increase the useful life of the cartridge by trapping sediment that typically plugs carbon block cartridges. EP Series Cartridges make an ideal choice for a wide range of residential, food service, commercial and industrial applications.