Supreme quality – Designed, engineered and assembled in USA to guarantee water safety & your health. This 75 GPD 6-stage system ROES-PH75 is guaranteed to remove up to 99% of impurities such as Chlorine, Taste, Odor, VOCs, as well as harmful Fluoride, Arsenic, Lead, Heavy Metals and 1000+ impurities. Max Total Dissolved Solids - 2000 ppm. Feed Water Pressure 40-85 psi Premium made filter cartridge uses premium-grade calcium from trusted source for safe, proven water ph enhancement. Enjoy ultra-pure drinking water with added calcium minerals for improved alkalinity and great taste. WQA certified system. Premium long lasting filters used to treat tap/well water. Provides unlimited clean drinking water. America's no.1 rated water filter brand with 20 years of success guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.