NSF/ANSI/CAN 61 for Filter Media: What It Really Means in Water Treatment In the water treatment industry, few certifications are mentioned as frequently as NSF/ANSI/CAN 61. Whether it is a municipal tender, packaged drinking water plant, beverage project, desalination pretreatment system, or industrial filtration setup, buyers often demand NSF 61 certified filter media. However, there […]