Industry certificated to meet NSF / ANSI 42 or 401 standard, Swift Green Rx using advance scientific purification process reduces chemicals, including pharmaceuticals, Volatile organic compounds (VOC), Chlorine Taste & Odor (CTO), pesticides, waterborne parasites, lead, Cyst mercury, asbestos, chlorlne and other industrial chemicals Made in the U.S.A using ONLY certified NSF/ ANSI lab tested raw material for its quality & performance. “100% Guarantee for Highest Preformance in its class and Capacity in the Industry”. Buy with confidence. Our Raw Material are BPA, Lead, Arsenic free Our mission is to Save Health !! Great alternative to expensive refrigerator branded filters. Does not remove minerals which may be beneficial to health