Quick Connect Filter, For Use With Culligan, Reduces Atrazine, Cyst, Lead, Lindane, Mercury, Methyl Tertiary Butyl Ether (MTBE), Particulates, Sediment, Volatile Organic Compounds (VOCs), Micron Rating 0.5 micron, Flow Rate 0.5 gpm, Diameter 2 3/4 in, Overall Height 12 1/2 in, Service Life 500 gal, Filter Media Carbon, Maximum Temperature 100 Degrees F, Application Under Sink, Standards NSF 42, NSF 53, Series US-EZ and IC-EZ