The Universal Premium Carbon Replacement Filter with FACT technology (NSF217) fits North Star''''s Standard Capacity Whole Home Water Filtration Systems (NSV200T, NS200), along with most major brands of standard capacity whole home housings. Using North Star''''s 100 years of innovation, this FACT filter''''s patented ''''Flow And Capture Technology'''' filters water using a sub-micron, pleated carbon design for better flow, higher levels of filtration, and longer life than most universal whole home filters. It is NSF certified to reduce chlorine taste and odor and sediment, giving homeowners better-tasting water along with longer-lasting plumbing and water-using appliances.