Alchemist™ Liquid Oxygen H2O2 is composed of 34% hydrogen peroxide. Use with caution. Keep away from children. This product is excellent for cleaning hydroponic equipment, materials and grow areas. It is considered unlawful to sell, use or distribute this product in ways other than as claimed. Common horticultural uses Sterilizing reservoirs, lines, pumps, and tools Oxidizing organic buildup in hydro systems Increasing dissolved oxygen (DO) in nutrient solutions Treating root rot (Pythium) when properly diluted Typical dilution ranges (Always follow manufacturer guidance — 34% is caustic) System cleaning: 1–2 mL per gallon Root-zone oxygenation: 0.5–1 mL per gallon Surface sanitation: 3–5 mL per gallon THIS PRODUCT IS HAZMAT AND CANNOT BE SHIPPED OUR APOLOGIES FOR THE INCONVENIENCE