Replacement Filter Set Sediment Filtration - Reduces particles / sediment as small as 5 microns ( .0002 in ) and adds life to the 1 micron filter Carbon Micron Filtration - Traps contaminants as small as 1 micron ( .0004 in ) while reducing lead, chlorine, cysts and organic contaminants Carbon Taste and Odor Reduction - ANSI / NSF Standard 42 for taste, chlorine and odor reduction Easy Twist Installation / Removal For Use with all Global Water G3, G4 and G5 Water Coolers