NIHON GENRYO is a Japanese company specializing in providing water infrastructure products and technologies, particularly in the field of potable water treatment. Although not a widely known name, the company’s products play a crucial role in the production of tap water that you use daily.

NIHON GENRYO specializes in manufacturing and supplying sand and gravel filters for water treatment plants, with over 80% of water treatment plants in Japan using their products. Therefore, the tap water you are using may have been filtered through one of NIHON GENRYO’s filters.