Sanitech has earned a solid reputation for providing advanced nanofiltration systems for industrial applications. NF is typically referred to as “loose” RO due to its larger membrane pore structure as compared to RO membrane systems and offers greater selectivity of ions vs. RO membrane systems that reject all ion species in a feed stream. Nanofiltration membrane systems are designed to allow passage of monovalent salts through the membrane but prevent the passage of more complex structure molecules. These are widely used in applications like concentrating APIs, antibiotics, peptides and other constituents that have a molecular weight greater than 1000 daltons.