Waterdrop Whole House Water Filter System Protect Our Family Appliance. 15 GPM Fast Water Flow. The water filter system has high flow as 15 gal/min and cannot have pressure loss. It will bring great convenience either for bathing or for washing. Filtering over 99% of Iron. The whole house water filter system can effectively reduce 99.3% of iron, 96.3% of manganese, chlorine, and other impurities larger than 5 microns. This whole house water filter has passed 100,000 water hammer assessment and can avoid leakage and corrosion risks by means of pure copper connectors. Save More on Maintenance. The water filter provide efficiency filtration. The house water filter can provide 6-month pure water guardian for your family.