 NSF led the development of American National Standards for all materials and products that treat or come in contact with 
								drinking water, such as plumbing components, 
								water treatment chemicals and 
								drinking water filters, as well as pool and spa equipment to help protect public health and minimize adverse health effects.
NSF led the development of American National Standards for all materials and products that treat or come in contact with 
								drinking water, such as plumbing components, 
								water treatment chemicals and 
								drinking water filters, as well as pool and spa equipment to help protect public health and minimize adverse health effects.