Aquasana Countertop AQ400 Water Filter Feel the difference with healthy, purified water... naturally! The Aquasana Countertop AQ4000 uses patented natural Claryum™ Technology to both remove 60 different contaminants while still retaining the beneficial minerals required for the body\'s hydration. This selective filtration process ensures water is pure, as mother nature intended... You can literally taste and feel the difference with the Aquasana Drinking Water Filter.   NSF Certified Claryum™ Filtration Technology Proven to reduce chlorine, heavy met...