Overview

The STIHL SG 51 Backpack Manual Sprayer is a lightweight, ergonomic, professional-grade manual pressure sprayer designed for applying liquid fertilizers, pesticides, herbicides, and insecticides across farms, gardens, orchards, and agricultural fields. Featuring a 12-liter (3.17 gallon) transparent chemical tank with clear level markings, the SG 51 delivers smooth spraying performance without requiring engine power or battery charging.

Engineered for maximum comfort during long shifts, the SG 51 features an internal pump mechanism protected from external impacts and a separate internal pressure reservoir so you only pressurize the fluid being sprayed rather than the entire tank. The interchangeable pump lever can be mounted on either the right or left side to accommodate left- and right-handed operators. Equipped with a brass hollow-cone nozzle, an ergonomic shut-off valve, a padded carrying harness, and integrated lid measuring cups, it provides precise liquid application and long service life.

Key Features & Benefits

• Interchangeable Pump Lever: Lever can be quickly installed on either the left or right side and adjusted for operator height.

• Internal Pump Protection: The pump mechanism is housed inside the main tank, shielding it from impacts, drops, and external debris.

• Separate Internal Pressure Reservoir: Allows fast pressurization of only the active liquid chamber, saving manual pumping energy.

• Adjustable Ergonomic Harness: High-comfort shoulder straps distribute weight evenly across the back to reduce user fatigue.

• Integrated Dosing Cups: The top container lid includes 3 built-in measuring cups for quick and accurate chemical mixing.

• Durable Brass Hollow-Cone Nozzle: Ensures precise spray pattern control and uniform liquid distribution across foliage.