The Pentek EPM-BB filter cartridges have the highest carbon block dirt-holding capacity for maximum cartridge life based on manufacturer s internal testing. The Pentek EPM-BB replacement cartridges reduce bad taste & odor and chlorine taste & odor based on manufacturer s internal testing. Low pressure drop. Manufactured using a patented process that yields a cartridge with a nominal 10 micron filtration rating high porosity and chlorine taste & odor reduction. The high porosity design helps prevent the cartridge from plugging before its adsorption capability is exhausted maximizing the utilization of the carbon while maintaining low pressure drop. The Pentek EPM-BB filter cartridges are protected by Endurawrap a uniquely formulated polyolefin bilaminate prefilter designed to significantly increase the useful life of the cartridge by trapping sediment that typically plugs carbon block cartridges. The Pentek EPM-BB cartridges are manufactured entirely from FDA-compliant materials making them an ideal choice for a wide range of residential food service commercial and industrial applications. Cartridges will contain a very small amount of carbon fines very fine black powder and a new cartridge after installation should be flushed with sufficient water to remove all traces of the fines from your water system before using the water. Each time you use your filtered water tap for drinking or cooking purposes it is recommended that you run flush the tap for at least 20 seconds prior to using water. NOTE: Performance capacity depends on system design flow rate and certain other application conditions. The Pentek EPM-BB cartridges are a modified version of the EP Series cartridge. When greater chlorine taste & odor reduction is needed use the EP-BB water filter. NOTE: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.