Delta 's news report DIAMOND Seal Technology a valve with a ruffian diamond coating. InnoFlex PEX waterways water at heart the regulator out of contact with potential drop metal contaminants. This strong combination you a regulator built to survive up to five million uses. Delta is to supporting water conservation around the globe and has been recognized as WaterSense Manufacturer Partner of the Year in 2011, 2013, and 2014.