This Waterdrop Gravity-Fed Stainless Steel Countertop Water Filter System has been certified by IAPMO R and T against NSF/ANSI Standard 372 (S0.25 lead). It could reduce up to 99% of Chlorine and Bad Taste, and is with a large capacity of 2.25 Gal. Two carbon filters are included, which has a filtration capacity of 6,000 Gal. of water. No electricity or plumbing work is needed to installed and used, which offers a very convenient way to get purified and safe drinking water for you and your families indoors and outdoors. The upper and lower chambers are made from 0.8mm thickened food-grade 304 stainless steel, which ensures not only a fashinonal outlook and easy-to-clean, but also a safe and furable design with wear and corrosion resistance. It could meet the water demands in different situations, such as your backyard, RV, camping, and even natural disasters (flood, snowstorm, etc.).