- Nov 30, 2018
- Watch Water
- Katalox-Light media
- Unauthorized use of the NSF certification mark on product label prior to September 28, 2018
- Prior to September 28, 2018, Watch Water displayed photos of the Katlox-Light media product bearing the NSF certification mark on various distributor websites. This product is not currently certified by NSF and therefore Watch Water is not authorized to display the NSF certification mark.