The Manitowoc K-00339 replacement water filter cartridge can be used with Manitowoc AR-20000 water filter assemblies and Manitowoc AR-40000 water filter assemblies (sold separately). The systems' quick-change designs helps protect the cartridge from being contaminated during changes. The cartridge captures minerals and particulates that can damage the ice machine, as well as chlorine and hydrogen sulfide that can impact the taste of the ice. The Manitowoc K-00339 replacement water filter cartridge provides 1-micron particle reduction for 20,000 to 40,000 gallons of water in its lifetime, depending on the quality of the incoming supply.