Achieve professional-grade precision with the STIHL SG 20 Manual Backpack Sprayer. Specifically designed for the accurate application of pesticides, herbicides, and fertilizers, this sprayer features a unique pressurized fluid reservoir separate from the main tank. This innovative design ensures a constant working pressure, allowing you to maintain a consistent spray pattern even while refilling the main tank.
The SG 20 is built for all-day comfort, featuring a lightweight design and an ergonomic backpack harness that distributes weight evenly to reduce operator fatigue. With its durable construction and streamlined components, it is the ideal choice for farmers, landscapers, and large-property owners who require a reliable, high-performance solution for chemical applications.
Notice: This product is not available for purchase or delivery in the state of California.
Key Features & Benefits
Constant Pressure Technology
- Separate Pressure Reservoir: Unlike standard sprayers, the internal pump stays pressurized independently of the main tank, ensuring no loss of pressure during operation or refills.
- Consistent Spray Pattern: Maintains a steady flow and droplet size, which is critical for the effective and safe application of specialized chemicals.
- High-Quality Brass Nozzle: Comes equipped with a durable nozzle designed for long-term resistance to corrosive compounds.
Ergonomic Professional Design
- Lightweight Polymer Tank: The 4.75-gallon tank is made from high-impact, UV-resistant polymer that is easy to clean and built to last.
- Padded Harness System: Features adjustable shoulder straps and a contoured back panel to provide maximum support during extended use.
- Left or Right-Hand Operation: The pump lever can be easily swapped to either side of the unit to accommodate the operator's preference.
Durable & Serviceable
- Internal Pump Design: The pump is located inside the tank to protect it from damage and prevent leaks onto the operator.
- Large Filler Opening: Reduces spills when mixing chemicals and makes the tank easy to rinse and maintain.
- Stainless Steel Components: Utilizes corrosion-resistant materials for critical spray components to extend the life of the tool.
Technical Specifications
| Power Source | Manual Pump |
| Tank Capacity | 4.75 Gallons (18 Liters) |
| Working Pressure | 29 - 87 psi |
| Weight (Empty) | 11.2 lbs. |
| Hose Length | 47 inches |