Solo 425 PRO Backpack Sprayer | 4 Gallon | Piston Pump | Professional Grade

Solo 425 PRO Backpack Sprayer — 4 Gallon | Piston Pump | Professional Grade

The Solo® 425 PRO is the gold standard in professional backpack sprayers. Built for commercial applicators, agricultural professionals, and serious landscapers, the 425 PRO combines a high-performance piston pump capable of up to 90 psi with Viton® seals throughout, a 4-position pressure regulator (15 / 30 / 45 / 60 psi), and a premium comfort harness — delivering unmatched chemical resistance, precision, and all-day wearability for the most demanding applications.

Key Features

• High-Performance Piston Pump: Delivers up to 90 psi (with optional plug #4200215, not included) for superior spray reach and penetration.
• 4-Position Adjustable Pressure Regulator: Dial in precise pressure at 15, 30, 45, or 60 psi for accurate, consistent chemical application across different tasks.
• Viton® Seals Throughout: Highly chemical-resistant seals ensure long service life when handling aggressive herbicides, pesticides, disinfectants, and fertilizers.
• 28" Stainless Steel Wand: Durable, chemical-resistant stainless steel wand provides excellent reach and long-term performance.
• 48" Nylon-Reinforced High-Pressure Hose: Extended reach hose handles high-pressure output without degradation.
• 4-Nozzle Assortment Included: Brass adjustable nozzle, fan spray, hollow cone, and jet stream — TeeJet compatible for maximum versatility.
• Double Filtration System: Filter basket and nozzle filter keep spray systems clean and clog-free.
• Commercial Shut-Off Valve: Lock-on/lock-off feature minimizes hand fatigue during extended spraying sessions.
• Deluxe Shoulder Saver Harness: Fully adjustable comfort harness designed for extended wear and proper weight distribution.
• Rugged Metal Frame: Provides stability when filling and adds structural durability for professional use.
• Extra-Large Tank Opening: Wide mouth for easy filling, cleaning, and chemical mixing.
• Fold-Away Handle with Wand Retainers: Compact storage and easy transport between job sites.
• 1-Year Limited Warranty: Backed by Solo®'s professional warranty for peace of mind.

Ideal Applications

• Commercial pest control and IPM programs
• Agricultural herbicide, pesticide & fertilizer application
• Professional landscaping, turf & ornamental management
• Greenhouse and nursery plant protection
• Weed control in gardens, parks & public spaces
• Liquid disinfectant and sanitation applications
• Forestry and vegetation management

Product Specifications

• Capacity: 4 gallons (15 litres)
• Pump Type: High-performance piston pump
• Max Pressure: Up to 90 psi (with optional plug)
• Pressure Settings: 15 / 30 / 45 / 60 psi
• Wand: 28" stainless steel
• Hose: 48" nylon-reinforced high-pressure
• Seals: Viton® (chemical resistant)
• Nozzles: 4-piece assortment (TeeJet compatible)
• Weight: 7 kg
• Warranty: 1-year limited
• Brand: Solo Corporation
• Model: Solo 425 PRO
• SKU: HARSPR425P425-PROF

Why Buy from Purity Feed?

• Farm and rural lifestyle experts serving BC acreage owners, hobby farmers, and commercial applicators
• Locally stocked — available for pickup in Kamloops and Merritt
• Knowledgeable staff who understand professional spraying requirements