Fit all Brita ® pitchers & dispensers.They reduce copper, mercury & cadmium that can be found in tap water. They also decrease the taste of zinc & both the taste & odor of chlorine. Replace water filters every 40 gallons, or approximately 2 months. One water filter can replace up to 300 standard 16.9-ounce water bottles. Water Filters Type: Pitcher Filter; for Use With: Brita ® Pitcher; Quantity: 1 each.