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Hydro-Logic Stealth/Small Boy Replacement KDF85 Filter
The Stealth/Small Boy Replacement KDF85 Filter is for use with Stealth-RO100/200 and SmallBoy models. Because of its double capacity, this filter should be changed out every 2,000 gallons of pure water produced. For proper performance, use only HydroLogic brand replacement filters. All other brands void the warranty