Two-Stage Purification System Reduces Contaminants Such As Bacteria, Virus, Lead, Mercury, Chlorine, Chloramine, Select Pharmaceuticals And More;Reduces Over 95% Of Perfluorooctanoic Acid (Pfoa) And Perfluorooctane Sulfonate (Pfos) In Drinking Water;Two-Cartridge System Includes Coconut Shell-Based Carbon Filter And Hollow Fiber Membrane Filter;Hollow Fiber Membrane Technology Reduces Bacteria And Virus In The Water;0.85 GPM (Gallons Per Minute) Maximum Flow Rate At 60 PSI;Provides The Equivalent Of Over 2,900 Standard 16.9-Oz Bottles Of Water;Filter Head Automatically Turns Off The Water Supply When Cartridge Is Removed;Postage-Paid Recycling Program For Used Cartridges To Reduce Solid Waste To Landfills;Includes K-77687 Carbon Block Voc And K-29639 Hollow Fiber Single Replacement Filter Cartridges;Recommended For Use With Beverage And Bar Faucets Such As Wellspring And Carafe.