AquaFresh brand water filters use advanced filtering technology to turn tap water in to great tasting water. AquaFresh filters remove the turbidity (tase and odor), sediment, dirt, rust and chlorine. This filter is used for some Atag, Cuno, LG, Zenith, Sears and Kenmore refrigerators. It does a great job of reducing chlorine taste and odor, particulates, lead, mercury and more. It also retains beneficial fluoride. Make sure to replace your filter every 6 months. Easy to Install: Twist the old filter a quarter-turn counterclockwise Pull the filter straight down and discard (the water will shut off automatically) Push the new filter up into the refrigerator until it stops Twist the new filter a quarter turn clockwise If your refrigerator has a "change filter" light, reset it now The WF290 filter removes the following contaminents: 99.30% of Lead at pH 6.5 99.90% of Lead at pH 8.5 94.50% of Mercury at pH 6.5 96.60% of Mercury at pH 8.5 99.92% of Asbestos 89.60% of Benzene 99.90% of P-Dichlorobenzene 99.99% of Cysts 98.70% of Carbofuran 97.00% of Chlorine 99.10% of Turbidity 97.60% of Particulates (Class I)* * This filter removes Class I particulates down to 0.5 microns. Operating Parameters: Temperature......................Min. 33 Max. 100 Pressure............................Min. 30 psi Max. 120 psi Flow Rate........................ .5 gpm The AquaFresh WF290 filter is a replacement for these models: Atag 88009234 Cuno LT500P LG/Zenith 5231JA2002A CNZ5231JA2002A LT500P 5231JA2002A-S T2004CNZ1648-0019 1648-0019 Sears/Kenmore 5231JA2002 LG LRSC21935 LRSPC2031 LRSPC2041 LRSPC2051 LRSPC2331 LRSPC2341 LRSPC2661 LRSC26905