Filtrete replacement filter is developed from innovative technology that enables water to flow very quickly into the 3M Filtrete Water Pitcher or Filtrete Water Station (sold separately) - nearly as fast as your faucet flows. It filters five times faster than traditional pitcher filters. The filter lasts for 100 gallons or three months and has a three-month filter change indicator. Filter housing can be recycled with No. 2 plastics. Filter can save up to 3,000 water bottles from the landfill per year.