Longlast filter replacements fit for most Brita large pitchers and dispensers, including Brita OB03, Classic 35557, Mavea 107007, countertop, Everyday, Grand, Mavea Classic, Lake, Slim, Capri, Wave, Metro, Amalfi, Soho, Infinity, Marina, Pacifica, Bella, Space Saver, Stainless Steel, Monterey, Altantis, PUR Advantage, PUR Ultima, and Ultramax. Not compatible with Stream pitcher. Natural materials Our standard water filter refills use coconut-based activated carbon in a BPA-free housing to filter contaminants that may be present in tap water while retaining minerals and electrolytes. Contaminants reduced include chlorine (taste and odor), copper, cadmium, and mercury. Effective filtration The Ultramax filter replacement uses multi-layer filtration technology that adsorbs a wide range of contaminants, effectively reducing impurities in drinking water and reducing limescale that can build up in household appliances. Great value and savings The water filter cartridges replace every 40 gallons, or about every 2 months for most households. If you have hard water, you may need to change filters more often. Use scenarios - Daily home use: Replace the filter in your Brita large pitcher or dispenser to continually provide cleaner drinking water for the family. - Office or break room: Maintain a steady supply of filtered water for employees and visitors without buying bottled water. - Appliance protection: Regular replacement helps reduce limescale buildup in appliances such as coffee makers, kettles, and dishwashers, helping maintain performance and longevity.