www.waterfilters.net/Pentek-EP-5-Carbon-Block-Filter-Cartridge.html
The Pentek EP-5 water filter is a Nominal 5 micron carbon block designed for chlorine taste & odor reduction, as well as sediment filtration. The Pentek EP5 water filter has low pressure drop compared to other 5 micron carbon filters. Also known as the Ametek EP-5, this filter cartridge is manufactured entirely from FDA compliant materials making it an ideal choice for a wide range of residential, food service, commercial and industrial applications. They also make excellent polishing filters or pre-filters in applications requiring fine filtration and high capacity.