Protects against irregular coloring and rotten egg smells in treated water. 
Pro Neutra Sul® is formulated to neutralize the rotten egg smell and pollutants from any water supply through oxidation. Neutra Sul has a proven consistency over hydrogen peroxide 7%, and can be used in place of Hydrogen Peroxide 7% solution to prevent the formation of colors, tastes, corrosion and scaling by pollution degradation. In fact, The stabilizer in Neutral Sul provides 5 times the shelf life of standard 7% peroxide, making it an even easier choice! Pro Neutra Sul is NSF Certified to meet NSF/ANSI Standard 60 for drinking water additives.