Milwaukee 2820-21WS M18 Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit

The Milwaukee 2820-21WS M18 18V Lithium-Ion Cordless SWITCH TANK 4-Gallon Backpack Water Supply Kit is designed for professionals who need a portable, battery-powered water supply with no manual pumping. Engineered for concrete cutting, coring, and other water-intensive applications, this system delivers instant, adjustable pressure up to 60 PSI, ensuring a steady flow rate. The interchangeable tank design separates the pump, hose, and quick-connect from the powered base, reducing wear on key components and lowering long-term costs. With a dual diaphragm pump, wide mouth opening, and strainer to prevent debris, this system provides durability and convenience on the job site. Powered by the M18 REDLITHIUM XC3.0 battery, it delivers up to 12 tanks per charge, keeping operations running without downtime.

Milwaukee M18 SWITCH TANK 4 Gallon Backpack Water Supply Kit At a Glance

• No manual pumping: Battery-powered system provides instant and continuous pressure.
• Adjustable pressure up to 60 PSI: 5-mode control for precise water flow during cutting and coring.
• Interchangeable tank design: Isolates pump, hose, and quick-connect, reducing wear and contamination.
• Up to 12 tanks per charge: M18 REDLITHIUM XC3.0 battery keeps jobs running longer.
• Durable dual diaphragm pump: Ensures extended pump life and reliability.
• 10 ft hose with quick-connect: Allows flexibility and easy attachment for water applications.
• Wide mouth opening with strainer: Prevents debris from entering the tank for cleaner operation.
• Comfortable backpack design: Wide straps and ergonomic handle for easy transport.
• OSHA Table 1 compliant: Meets regulations for silica dust control in concrete cutting.
• Compatible with other SWITCH TANK assemblies: Works with the 4-gallon concrete sprayer and pesticide tank for multi-use functionality.

Markets

• Concrete Cutting & Coring: Provides a constant, adjustable water flow to control dust and increase cutting efficiency.
• General Contracting: Ideal for professionals who need a portable water source for job site tasks.
• Landscaping & Irrigation: Useful for watering plants, prepping soil, and managing outdoor projects.
• Municipal & City Work: Helps with dust suppression, pavement maintenance, and cleaning.
• Trade Schools & Training Centers: A great teaching tool for hands-on training in construction and masonry programs.
• Remodeling & Demolition: Supports wet-cutting tools and cleanup processes in renovation projects.
• Outdoor Projects & Masonry: Ensures dust control and water delivery in stone and brickwork applications.

This backpack water supply system is ideal for contractors, concrete workers, and landscapers who need a reliable, high-performance water delivery system. Unlike traditional manual pump sprayers, the Milwaukee SWITCH TANK eliminates hand fatigue and provides consistent pressure, allowing users to focus on precision work. The 5-mode pressure adjustment knob offers complete control, making it perfect for cutting, coring, and wet sawing applications. The interchangeable tank design also ensures easy switching between different liquids or tasks, reducing cross-contamination and increasing efficiency.

Milwaukee 2820-21WS M18 18 Volt Lithium-Ion Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit Features

• Interchangeable tanks, no manual pumping
• Up to 12 tanks per charge
• Add-on, replace and interchange SWITCH TANK concrete sprayers and water supply tanks
• Instant, constant and adjustable pressure for ultimate control
• Up to 60 PSI
• Run-time: up to 12 tanks per charge with M18 REDLITHIUM XC3.0 battery
• OSHA table 1 compliant when concrete cutting and coring
• Wide mouth opening for easier pouring
• Strainer to filter debris
• Wide straps and handle for convenient transport and storage
• Compatible with SWITCH TANK™ Concrete Sprayer and Pesticide Tank Assemblies

Milwaukee 2820-21WS M18 Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit Includes

• (1) M18™ SWITCH TANK™ 4-Gallon Backpack Water Supply Kit (2820-21WS)
• (1) SWITCH TANK™ 4-Gallon Water Supply Tank Assembly (49-16-28WS)
• (1) M18™ REDLITHIUM™ XC Extended Capacity Battery (48-11-1828)
• (1) M18™ & M12™ Multi-Voltage Charger (48-59-1812)
• (1) 10ft Hose w/ Quick-Connect
• (1) Water Spray Nozzle w/ Quick-Connect

Milwaukee 2820-21WS M18 Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit Specifications

• Voltage: 18V
• Battery Type: M18 REDLITHIUM XC3.0
• Power Source: Cordless
• Tank Capacity: 4 Gallons (15.14 Litres)
• Pressure Range: 20 – 60 PSI
• Flow Rate: Up to 1.13 gal/min
• Hose Length: 10 ft
• Weight: 18.45 lbs (without battery)
• Dimensions: 21.75″ H x 13.0″ W x 10.0″ L
• Warranty: 3 Years on Base, 1 Year on Tank, 3 Years on Battery

Milwaukee 2820-21WS M18 Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit Warranty

• Milwaukee’s 3 Year Tool , 1 Year Tank, 3 Years Battery Limited Warranty

Why Customers Choose the Milwaukee M18 Cordless SWITCH TANK 4 Gallon Backpack Water Supply Kit

The Milwaukee M18 SWITCH TANK Water Supply Kit is a game-changer for job site water supply, providing efficiency, power, and versatility without the hassle of manual pumping. Whether you’re cutting concrete, controlling dust, or managing water flow for outdoor projects, this battery-powered system keeps operations running smoothly. Its interchangeable tank design ensures easy maintenance and lower costs, making it an essential tool for professionals who need a reliable and portable water solution.