Culligan PR-3U Level 2 Universal Pitcher Drinking Water Replacement Cartridge, 3pk: * Reduces bad taste, aesthetic chlorine taste, odor, mercury, copper, zinc and particulate class VI * Quick and easy replacement with no tools required * Each cartridge lasts for up to 2 months or 50 gallons * Use with Culligan PIT-1 drinking water pitcher filter * Fits Brita and PUR pitcher filters as well * WQA tested and certified * Not available in CA or IA * Model# I PR-3U