An anti-counterfeiting feature for Dow Residential RO products is available to provide assurance your products are genuine. Scan with the Dow Home Water mobile app or a generic QR code reader available in many third party apps to verify that your product is genuine or counterfeit, learn about product details, access special promotions, and contact Dow directly. The Dow Home Water mobile app is available for Apple iOS or Google Android OS, or follow us on WeChat. https://itunes.apple.com/us/app/dow-home-water/id1296126840?mt=8 https://play.google.com/store/apps/details?id=com.scantrust.android.dow