Keep It Clean, our irrigation system cleaner that works to keep your irrigation systems clean. Keep it Clean uses hydrogen peroxide and copper, to clean away harmful bacterial / fungi growth and algae build-up in your irrigation systems. It works to help cure and prevent future irrigation system clogs. It can be used regularly as a preventative cleaner in your irrigation systems. Keep it clean has no effect on your plants, as hydrogen peroxide is a plant-friendly cleaning agent. NPK: 0.1 - 0.1 - 0.1 Main Ingredients: Hydrogen Peroxide Copper Keep it Clean is made with food-grade raw materials and is free of heavy metals and free of PGRs. It passed all legislation and is safe to use. Find More Information on the Product Page: Keep It Clean