PUR MineralClear Faucet Refill RF-9999, 6 Pack with Mini Tool Box (fs) Certified to remove 10 times more contaminants than the leading brand's pitcher filter Removes 99 percent of lead and microbial cysts and reduces many other contaminants that may be in water First leading brand shown to reduce trace levels of pharmaceuticals (pharmaceutical reduction is not certified by NSF/ANSI or state standard) Filters water over natural minerals for a crisp, refreshing taste Replaces previous three-stage filter