Frigidaire PureSource Ultra II Water Filter. Is designed to fit most Frigidaire models after 2015. For guaranteed performance, only use Frigidaire genuine water filters. Replace filter every 6-months or 200 Gal. to maximize contaminant reduction Easy push and twist install Premium genuine water filter tested and certified by NSF international standards NSF standard 42 certified: reduces chlorine, taste and odor, NSF standard 53 certified: reduces health related contaminants such as lead, volatile organic chemicals and asbestos, NSF standard 401 certified: reduces emerging chemical compounds