Solo 425 4-Gallon Backpack Sprayer

The Solo 425 is a 4-gallon backpack sprayer with a piston pump that holds pressure for consistent output up to 90 psi. Its high-impact, UV-resistant polyethylene tank is built for hard field use, and the max-leverage pump handle mounts on either side. The large 4-gallon capacity covers more ground between refills, making it well suited to bigger gardens and orchards.

At a glance

• Type: 4-gallon backpack piston-pump sprayer
• Max pressure: 90 psi
• Tank: High-impact, UV-resistant polyethylene
• Wand: 22 inch fiberglass-reinforced with trigger and shut-off valve
• Nozzles: Fan, hollow cone, adjustable plastic, and jet stream
• Features: Leakproof one-way valve lid, large filler port with strainer, in-line filter

Best for

• Large gardens, orchards, and small farms
• Applying pesticides, herbicides, and fertilizers
• Long spraying sessions carried on the back
• Tasks needing varied spray patterns
• Hard, regular field use

How to use

Fill through the large port (the strainer screens debris), pick your nozzle, and pump the handle to pressurize. The piston pump holds pressure, so light pumping keeps output steady. Spray with the reinforced wand, and rinse the tank, hose, and wand with clean water after each use.

About Grow Organic

Grow Organic supplies seeds, tools, and natural growing products for home gardeners and small farms, with a focus on organic and earth-friendly solutions.

Sold by Grow Organic, based in Grass Valley, California.