Physan 20 Fungicide 16 oz.
Physan 20 is a trusted professional-grade multi-purpose disinfectant, fungicide, algaecide, and sanitizer widely used in greenhouses, nurseries, hydroponic systems, and horticultural environments. This versatile concentrate helps control algae, fungi, bacteria, odors, and many plant-related pathogens on hard non-porous surfaces, growing equipment, benches, pots, trays, tools, irrigation systems, and labeled ornamental applications.
Known for its broad-spectrum performance, Physan 20 is a favorite among growers, orchid enthusiasts, greenhouse operators, hydroponic gardeners, and propagation professionals seeking a dependable sanitation solution.
Ideal for maintaining clean growing environments where disease pressure and contamination must be minimized.
Key Benefits
✔ Broad-spectrum disinfectant, fungicide & algaecide
✔ Helps control algae, fungi, bacteria & odors
✔ Excellent for greenhouse sanitation programs
✔ Use on pots, trays, benches, tools & equipment
✔ Great for hydroponic and propagation systems
✔ Helps reduce contamination and disease spread
✔ Easy-to-mix concentrate formula
✔ Trusted by growers and greenhouse professionals
Controls / Helps Manage
- Algae buildup
- Surface fungi
- Mold and mildew
- Bacteria on labeled surfaces
- Greenhouse odors
- Contamination on tools and equipment
- Pathogen spread in growing environments
(Always consult the product label for complete claims, use sites, and directions.)
Use On
- Greenhouse Benches
- Pots & Containers
- Seed Trays
- Propagation Tools
- Hydroponic Equipment
- Irrigation Components
- Greenhouse Floors
- Hard Non-Porous Surfaces
- Orchids & Ornamentals (where labeled)
- Nursery Equipment
Active Ingredient
Quaternary Ammonium Compound Blend
(Refer to product label for exact percentages.)
Application Information
Dilute with water according to intended use and label directions.
Common Uses:
- Greenhouse sanitation
- Pot and tray disinfection
- Tool sterilization between plants
- Algae cleanup programs
- Hydroponic system sanitation
- Surface disease prevention programs
Always follow label rates, contact times, PPE, and plant safety instructions.
Why Choose Physan 20?
Physan 20 is one of the most recognized sanitation products in horticulture because it offers multiple benefits in one product—cleaning surfaces, suppressing algae, and reducing disease-causing contaminants. It helps growers maintain cleaner, healthier production environments with less risk of cross-contamination.
Perfect for greenhouses, nurseries, orchid collections, hydroponics, and serious gardeners.
Package Size
16 oz. Bottle










































