Description
Milwaukee 3019-20PS M18 4-Gallon Backpack Sprayer with SWITCH TANK – Tool Only
Zero Manual Pumping. Instant 140 PSI Power. Interchangeable Multi-Chemical Tank Versatility.
The Milwaukee 3019-20PS M18 SWITCH TANK 4-Gallon Backpack Sprayer introduces tireless commercial chemical delivery, unbeatable pressure consistency, and flexible multi-application workflow adjustments directly to your professional fleet. Purpose-built to eliminate the user fatigue, uneven application patterns, and constant down-time of manual pump-up handles, this battery-powered backpack sprayer system provides rapid coverage. It equips commercial landscape crews, turf care companies, agriculture workers, and pest management technicians with a heavily padded mobile station optimized to spray herbicides, pesticides, fertilizers, and exterior cleaning agents effortlessly.
Advanced fluid isolation and heavy-duty structural durability serve as the core backbone of this elite Milwaukee M18 Sprayer Base framework. Constructed with the revolutionary SWITCH TANK™ interchangeable tank assembly, the tool separates the motor base from the fluid reservoir—allowing crews to snap on separate chemical tanks in seconds to eliminate cross-chemical contamination completely. Powered by a continuous dual diaphragm pump and premium Viton® seals, the platform maintains customizable output pressures up to 140 PSI with a 24 ft vertical spray range. An adjustable, weight-optimized backpack harness complete with broad shoulder straps, lumbar support, and a heavy-duty waist belt guarantees all-day jobsite comfort.
Why the Milwaukee 3019-20PS Controls Your Workspace Operations:
- SWITCH TANK™ Modular Engineering: Independent pump, hose, and wand configurations allow instant tank swaps to keep concrete, lawn care, and pest chemicals strictly separated.
- Instant Adjustability Up to 140 PSI: Built-in 5-mode pressure dial adjusts flow rates instantly from 0.1 to 0.52 GPM to match everything from delicate ground target spraying to high-reach orchard coverage.
- Heavy-Duty Chemical Viton® O-Rings: Premium synthetic rubber chemical-resistant seals ensure high-performance lifespan against corrosive landscape liquids and aggressive wood treatments.
- Dual Diaphragm Fluid Piston: Pro-grade internal pump engineering maximizes the overall service lifetime while removing the threat of high-friction internal scaling.
- Uncompromised M18 Platform Runtime: Delivers up to 20 full 4-gallon tanks of continuous chemical application per single charge when paired with an M18™ REDLITHIUM™ XC3.0 Battery (sold separately).
Specifications
| Sprayer System Performance Metric | Industrial Specification Details |
| Model / Catalog Part Number | 3019-20PS (Gen II Advanced Commercial Delivery Station) |
| Manufacturer Brand Line | Milwaukee® Tool (Heavy-Duty Outdoor Power Platform) |
| Fluid Container Capacity | 4.0 Gallons (15.1 Liters High-Visibility Fluid Tank) |
| Max System Fluid Pressure | 140 PSI (Pounds Per Square Inch Peak Driving Force) |
| Adjustable Flow Output Range | 0.10 GPM Minimum up to 0.52 GPM Maximum Volume Stream |
| Vertical Target Projection Range | Up to 24 Feet (7.3 Meters Vertical Reach Clearances) |
| Integrated Control Settings | 5-Mode Precision Pressure/Flow Modulation Dial Knob |
| Internal Structural Seals | High-Grade Viton® Material Corrosion-Resistant System |
| Primary Core Pump Architecture | Self-Priming Heavy-Duty Dual Diaphragm Mechanics |
| Core Base Component Weight | 17.4 lbs (Dry Weight Unloaded Chassis Assembly Mass) |
| Universal Battery Compatibility | Fully Operational with All Milwaukee® M18™ Lithium-Ion Cells |
| Product Purchase Package Tier | Bare Tool Edition (M18 Base & Tank Included; Battery/Charger Sold Separately) |
Frequently Asked Questions
+ What exactly is the Milwaukee SWITCH TANK system and how does it save money?
+ Does this "Tool Only" listing include the fluid tank or is it just the motor base?
+ Approximately how many tanks can I spray on a single battery charge?
+ Can I use this specific sprayer assembly to apply acetone-based concrete sealers or acid dyes?
Product Specifications
selling_points: |
✔️ Modular Switch Tank Base: Isolated interchangeable pump and hose deck assemblies instantly snap off to swap fluids cleanly. ✔️ 5-Mode Pressure Control: Micro-adjusting dial fine-tunes flow up to a strong 140 PSI. |
category_bullets: |
• Milwaukee M18 Sprayer Core: Cordless 4-gallon battery-powered backpack chemical sprayer pump dispenses landscape fertilizers and pesticides without manual hand-pumping fatigue. • 140 PSI Max. • Gen II No-Leak. |
