Ruby Alkaline Black Water Purifier with Copper RO UV UF with TDS adjustment (TDS meter free)Boost your immunity with the goodness of copper in the Alkaline Filter, Ruby Alkaline Black Water Purifier with Copper + RO + UF + UV + TDS The multiple purification process makes the drinking water 100% pure and suitable for drinking. This process removes even dissolved impurities such as arsenic, rust, pesticides, and fluorides, and kills bacteria and viruses to make water potable. The alkaline cartridge that is designed to balance water pH turns