Alchemist™ Liquid Oxygen H₂O₂ 34% Hydrogen Peroxide - 5gal

34% Concentrated Hydrogen Peroxide for Water-Line and Reservoir Treatment - 5gal

Alchemist™ Liquid Oxygen is a concentrated 34% hydrogen peroxide solution for approved agricultural and horticultural applications. As a powerful oxidizer, growers use it diluted for water-line treatment, reservoir treatment, and root-zone oxygenation. Available in 5gal. Handle with care and keep out of reach of children.

Key Features & Benefits

• 34% Concentration: High-purity hydrogen peroxide for effective oxidation at low use rates once diluted.
• Water Line & Reservoir Treatment: Helps address biofilm buildup in irrigation systems when used as directed.
• Clean Breakdown: Degrades into water and oxygen, leaving no harmful residue.
• Available in 5gal: Choose the volume that matches your operation size.

Who Should Use This

Commercial and hobby growers who want a concentrated oxidizer for system treatment, water-line maintenance, or root-zone oxygenation. Always follow label directions and applicable regulations.

Compatibility

Compatible with most hydroponic and irrigation systems when properly diluted. Always dilute in water before application. Not compatible with beneficial microbial products — do not use simultaneously.

About Alchemist

Alchemist, a Hawthorne Gardening Company brand, formulates its Liquid Oxygen line at a consistent 34% concentration across all container sizes, so growers dilute from the same starting point whether they're treating a single reservoir or a full commercial water system.

Frequently Asked Questions

Is 34% H2O2 safe to handle?

At 34% concentration it is a strong oxidizer. Wear gloves and eye protection and handle it in a well-ventilated area. Keep it out of reach of children.

Can I use this alongside beneficial microbes?

No — hydrogen peroxide will harm beneficial microorganisms. Do not use it at the same time as microbial inoculants or bioactive media; space the two applications apart.

What is the typical dilution rate?

Dilution rates vary by application. Refer to the product label and applicable guidelines for your specific use case, and mix only the diluted solution before applying it to your system.

When should I treat my irrigation system with this product instead of during routine maintenance?

Treat water lines and reservoirs proactively on a routine schedule rather than waiting for visible biofilm or algae buildup, since by the time buildup is visible it has often already reduced flow or clogged emitters. Routine, lower-frequency treatment is easier to dial in safely than a reactive, higher-concentration cleanout.