Description : 42401 Reduces impurities and has an added layer to trap sediment. All that s left behind is healthier great-tasting water. Reduces lead cryptosporidium giardia TTHMs and VOC (substances reduced may not be in all users water). Replace every 100 gallons or four months whichever comes first. Each filter saves up to 750 bottles of water. White. Water Filters Type: Faucet Filter; For Use With: Brita Faucet Filter System; Filtration: N/A; Quantity: 1 each.