F.SET.SS-2.5 Environmental Water Systems Essential Single Stage Replacement Filter World-class EWS water filtration and performance for the removal of chlorine, pesticides, THMs, VOCs, obesogens, lead, cysts, rust, silt, sediment, and much more. The ESSENTIAL Single Stage offers improved taste and odor and water quality with our advanced carbon block, full bed depth filter.Keep in mind this is for limited use and is only one stage. It does not offer the same protection as our ESSENTIAL Drinking Water Systems, EWS Series, or CWL Series whole home filtration appliances.Single stage unit for limited use and for providing better tasting water.For wet bars, ice makers, and other specific applications with homes that do not have a whole home filtration appliance.City water or well water*.Made in the USA.Maintenance-free for up to 1 year before filter replacement. Just change them out and go!