3 Stages Under The Sink Filtration System Drinking System Features: Capacity: 1-2gpm Purpose: For the removal of solid particles and chlorine taste and odor from water. Application: Laboratory use Office use Drinking and cooking purpose Process of Filtration and Treatment System: 1st stages: 5micron sediment filter that removes solid particles from the water. (Diameter of 1 hair strand = 75 Micron) 2nd stages: Carbon Block Filter eliminates unpleasant taste and odors caused by chlorine and organic contaminants,also known polishing carbon filter that makes the water crystal clear shiny. 3rd stages:1 micron sediment filter that removes smallest solid particles from the water. CE certified NSF certified USA Technology Note: Optional Ultraviolet Light