Fit all Brita? pitchers and dispensers.They reduce copper, mercury and cadmium that can be found in tap water. They also decrease the taste of zinc and both the taste and 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: 3 per pack.