Mavea 1005754 Replacement Filter Cartridge for Aktiv+ Premium Under-Sink Water Filtration System Replacement filter for the Aktiv+ under sink water filtration system, provides clean, clear and great tasting drinking water Reduced lime-scale, significantly reduces water hardness and other unwanted elements uniquely suited for cooking and beverage making, filters and optimizes water into a gourmet ingredient Fast flowing output: High volume flow rate makes large capacity fills quick Sustainable: The only comprehensive filter take back and recycling program in the industry, one filter equals up to 2,000 bottles of water. Unlike reverse osmosis systems, Aktiv+ wastes no water Made in Germany with a lifetime quality guarantee