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Milwaukee 2820-21CS M18 SWITCH TANK 4-Gallon Backpack Concrete Sprayer Kit
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Milwaukee 2820-21CS M18 SWITCH TANK 4-Gallon Backpack Concrete Sprayer Kit
Cordless Battery-Powered Sprayer with Interchangeable Tank System
The Milwaukee 2820-21CS Concrete Sprayer is a cordless M18 SWITCH TANK backpack sprayer designed for concrete professionals who need consistent spraying performance without manual pumping. Featuring an interchangeable tank system, this battery-powered sprayer delivers adjustable pressure control for demanding jobsite applications.
Powered by the M18 system, the 2820-21CS provides instant, constant pressure up to 120 PSI with a spray distance of up to 25 feet. The five-mode pressure adjustment knob allows users to select the appropriate pressure level between 20–120 PSI for different concrete spraying requirements.
The 4-Gallon Concrete Sprayer Tank Assembly features a dual diaphragm pump for extended pump life and Viton® seals designed to handle harsh chemicals. The isolated pump, hose, and wand design helps reduce cross-chemical contamination while allowing easy tank replacement.
Designed for concrete contractors and professional applications, the Milwaukee M18 SWITCH TANK Concrete Sprayer includes comfortable backpack straps, a transport handle, wide tank opening, and integrated strainer for easier filling and operation.
Key Features – Milwaukee 2820-21CS Concrete Sprayer
- M18 SWITCH TANK 4-Gallon cordless backpack concrete sprayer
- Interchangeable tank design eliminates manual pumping
- Adjustable pressure from 20–120 PSI
- Up to 25 ft spray distance
- Five-mode pressure adjustment control
- Dual diaphragm pump for extended pump life
- Viton® seals for chemical durability
- Up to 12 tanks per charge with M18 REDLITHIUM XC3.0 Battery
- Wide backpack straps for extended spraying comfort
- Wide mouth opening and strainer for cleaner filling
- Replaceable tank assembly reduces ownership costs
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Milwaukee |
| Model Number | 2820-21CS |
| Product Type | Cordless Backpack Concrete Sprayer |
| Battery System | M18 |
| Tank Capacity | 4 Gallons |
| Pressure Range | 20 – 120 PSI |
| Maximum Spray Distance | 25 Feet |
| Pump Type | Dual Diaphragm Pump |
| Tank System | Interchangeable SWITCH TANK System |
| Runtime | Up to 12 Tanks Per Charge |
| Seals | Viton® Seals |
| Pressure Adjustment | 5-Mode Pressure Control |
Ideal Applications
- Concrete contractors
- Concrete curing applications
- Construction job sites
- Surface treatment spraying
- Professional maintenance work
- Industrial spraying applications
- Commercial construction projects
Available at ToolKing.com – trusted supplier of professional Milwaukee cordless tools, M18 solutions, sprayers, and industrial-grade equipment for demanding jobsite applications.
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