The Pur Multi-Cup Pitchers provide clean great-tasting water conveniently waiting and chilled in your refrigerator. They are available in a variety of sizes for your drinking pleasure. Reduces lead and is the only pitcher to remove 99.9 percent of microbiological cysts while leaving beneficial fluoride in the water. One filter provides up to 40 gallons which is 1 to 2 months of crystal clean water.