Platinum NSF 42 Certified Carbon Block filter;10 Micron Rating;The CB cartridge filter is suitable for high capacity chlorine and bad taste and odor reduction from drinking water.;These filters are also used for sediment filtration, making them a great choice for pre-filtering water for reverse osmosis applications.;Used in 10 in Big Blue filter housings;2 gpm maximum Feed Flow Rate;15, 000 gallons at2 gpm capacity