Industry certificated to meet NSF / ANSI 42 standard. Royal Pure Filters reduces Chlorine Taste & Odor (CTO) and Lead. Made in the U.S.A using ONLY certified NSF/ ANSI lab tested raw material for its quality & performance. 100% Guarantee for Highest Performance in its class and Capacity in the Industry. Buy with confidence. Our Raw Material is BPA, Lead, and 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 100% satisfaction guarantee; Outstanding quality; Easy filter replacement; DIY, no tools required to replace this water filter. Replace every 3- 6 months for best performance. Eco friendly filter uses coconut shell carbon (Renewable Resource), the earths most powerful natural filter while keeping plastic water bottles out of our landfills water.