Keep safe, great tasting water flowing with PureSource Ultra water filters — ULTRAWF reduces up to 99% of contaminants, cuts back on plastic and saves the cost of bottled water. NSF and WQA certified. Look for our berry-colored design with our new Genuine Filters seal on the package to know for certain your filter is authentic and sold by Frigidaire. Frigidaire Genuine Filters – the smarter, safer choice. For complete list of reduced contaminants, please see Performance Data Sheet on Frigidaire.com.