Model#: MILN2820-21WS

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

  • Milwaukee 2820-21WS M18 SWITCH TANK 4-Gallon Backpack Water Supply Kit
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The MILWAUKEE M18 SWITCH TANK 4-Gallon Backpack Water Supply kit is the industry’s first interchangeable tank design with no manual pumping. Designed to meet water supply needs for concrete cutting and coring, the battery-powered water supply delivers instant, constant and adjustable pressure up to 60 PSI. The 5-mode pressure adjustment knob adjusts the pressure between 20 – 60 PSI for ultimate control. The M18 REDLITHIUM XC3.0 Battery provides up to 12 tanks of water delivery per charge. The 4-Gallon Water Supply Tank Assembly has a dual diaphragm pump for increased durability and longer pump life. The tank also has a wide mouth opening for easier pouring and a strainer that filters debris from getting into the tank. The backpack frame includes wide straps and a handle for convenient transportation and storage.
The 4-Gallon Water Supply is made up of two components – the M18 SWITCH TANK Powered Base and the SWITCH TANK 4-Gallon Water Supply Tank Assembly. The Powered Base includes the motor, battery compartment, and REDLINK electronics. The interchangeable Tank Assembly includes the pump, 10ft hose, and quick-connect. The isolated pump, hose, and quick-connect design allows tank assemblies to be added for different applications, eliminating cross-chemical contamination. It also allows tank assemblies to be replaced at a lower cost of ownership compared to replacing the entire water supply. The Powered Base is also compatible with the SWITCH TANK 4-Gallon Concrete Sprayer (49-16-28CS) and 4-Gallon Sprayer (49-16-28PS) Tank Assemblies. The M18 SWITCH TANK 4-Gallon Backpack Water Supply is part of the M18 system which is fully compatible with over 175 tools. The kit also includes one M18 REDLITHIUM XC3.0 Battery and an M18/M12 Multi-Voltage Charger.
  • 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 and handle for convenient trasnport and storage
  • M18 SWITCH TANK 4-Gallon Backpack Water Supply Kit - 2820-21WS
  • SWITCH TANK 4-Gallon Water Supply Tank Assembly - 49-16-28WS
  • (1) M18 REDLITHIUM XC3.0 Extended Capacity Battery - 48-11-1828
  • (1) M18 & M12 Multi-Voltage Charger - 48-59-1812
  • 10 ft. Hose w/ Quick-Connect
  • Water Spray Nozzle w/ Quick-Connect


Series: M18
Cordless: Yes
Capacity: 4-Gal.
Nozzle Type: Water Spray Nozzle



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