The classic filter gives your family clean, mineralized alkaline water with its advanced 6-stage filtration system. Each filter lasts up to twice as long as most water pitcher filters. Makes water alkaline and helps your body maintain optimal pH, adds healthy minerals: calcium, magnesium, potassium and other trace minerals, reduces chlorine by up to 90%, produces a taste that makes you want to drink more water, a single filter can remove 600 single-use plastic bottles from landfills. Compatible with the classic alkaline pitcher.