5-stage Zoi Alpha Pure RO Water Filter 50 GPD - Removes Fluoride, Lead, Arsenic, and MORE from Drinking Water Genuine unit from Abundant Flow comes with FlowLok leak protection! Free Removes 95-98% of all contaminants leaving you with ultra pure water! Low cost, low maintenance, standard size filters change once a year Quality, made in the USA! NSF certified components! All assembled! Easy to install with complete installation kit and instructions