Maxion® Filter Technology Certified to remove 99% of Lead, and over 70 other contaminants including 96% of Mercury and 92% of certain Pesticides. Filters over Mineral Core for crisp, refreshing taste. CleanSensor Monitor - more visible electronic filter change light. for enhanced filter compliance and 60% improved battery life New leak proof connector & improved grip. 1 Filter provides up to 100 gallons (2 to 3 months) of clean water.