Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit

The Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit with SWITCH TANK 3AH Kit is designed for professionals who need a portable, battery-powered water supply system with no manual pumping. Engineered to meet the demands of concrete cutting, coring, and dust suppression, this system delivers instant, consistent, and adjustable pressure up to 60 PSI for efficient water flow control. A 5-mode pressure adjustment knob allows users to fine-tune pressure from 20 to 60 PSI, ensuring the right flow rate for each application. The included M18 REDLITHIUM XC3.0 battery powers up to 40 full tanks per charge, keeping productivity high on the job site.

Built with a dual diaphragm pump, the 4-gallon water supply tank ensures longer pump life and durability, while a wide-mouth opening and integrated strainer help prevent debris from entering the system. The interchangeable tank design allows users to quickly switch between different tank assemblies, eliminating cross-contamination and lowering long-term costs. The backpack-style frame features an adjustable premium harness and a convenient carrying handle, making transport and storage effortless. This kit includes the M18 Powered Base with SWITCH TANK, 4-Gallon Water Supply Tank Assembly, 10-ft hose with quick-connect, water spray nozzle, M18 REDLITHIUM XC3.0 battery, and M18/M12 multi-voltage charger.

Milwaukee M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit At a Glance

Battery-powered water supply, no manual pumping: Delivers instant, consistent pressure up to 60 PSI.
5-mode adjustable pressure control: Fine-tune water flow between 20 and 60 PSI for precise applications.
Interchangeable tank system: Reduces cross-contamination and simplifies maintenance.
Up to 40 tanks per charge: M18 REDLITHIUM XC3.0 battery provides long-lasting operation.
Dual diaphragm pump: Ensures increased durability and extended pump life.
Wide mouth opening with strainer: Makes filling easy while filtering out debris.
Premium harness with lumbar support and handle: Designed for comfort and easy transport.
10-ft hose with quick-connect system: Allows for flexible water delivery.
OSHA Table 1 compliant: Meets regulations for silica dust control when concrete cutting and coring.
Compatible with SWITCH TANK sprayer assemblies: Works with the 4-Gallon Pesticide Sprayer Tank Assembly (49-16-19PS).

Markets

Concrete Cutting & Coring: Supplies water for wet cutting, core drilling, and dust suppression.
General Contracting: Essential for construction crews needing a portable water source on-site.
Landscaping & Irrigation: Provides a battery-powered solution for watering plants and soil prep.
Municipal & City Work: Supports pavement cutting, dust suppression, and maintenance tasks.
Trade Schools & Training Centers: Useful for hands-on instruction in construction and masonry programs.
Demolition & Remodeling: Helps manage water flow for dust control and material removal.
Outdoor Projects & Masonry: Ensures efficient water delivery for stonework and brick applications.

For concrete contractors, demolition crews, and municipalities, the Milwaukee M18 4-Gallon Water Supply Kit provides a portable, high-efficiency water source without the hassle of manual pumping. Whether it’s delivering water for wet cutting, core drilling, or dust suppression, the consistent and adjustable pressure ensures the right amount of water for each task. The interchangeable tank system makes switching between different liquid applications simple while reducing downtime and maintenance costs. Comfortable, ergonomic backpack straps make extended use easier, improving workflow efficiency on large projects.

Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit Features

Interchangeable Tanks, No Manual Pumping
Instant, Constant and Adjustable Pressure for Ultimate Control
Run-time: Up to 40 tanks per charge with M18™ REDLITHIUM™ XC3.0 Battery
Adjustable Premium Harness and handle for convenient transport and storage
Add-On, Replace and Interchange Water Supply Tanks w/ SWITCH TANK™
OSHA Table 1 Compliant when Concrete Cutting and Coring
Up to 60 PSI
Wide Mouth Opening for Easier Pouring
Strainer to Filter Debris
Compatible with Pesticide Sprayer Tank Assemblies w/ SWITCH TANK™

Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit Includes

(1) M18 Powered Base w/ SWITCH TANK
(1) 4-Gallon Water Supply Tank Assembly w/ SWITCH TANK (49-16-19WS)
(1) 10ft Hose w/ Quick-Connect (49-16-2805)
(1) Water Spray Nozzle w/ Quick-Connect (49-16-2805)
(1) M18 REDLITHIUM XC3.0 Battery (48-11-1828)
(1) M18/M12 Multi-Voltage Charger (48-59-1812)

Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit Specifications

Voltage: 18V
Battery Type: M18 REDLITHIUM XC3.0 (Included)
Power Source: Cordless
Tank Capacity: 4 Gallons
Pressure Range: 20 – 60 PSI
Hose Length: 10 ft
Weight: 18.9 lbs (with battery)
Dimensions: 22.5″ H x 15″ W x 10.5″ L
Battery Amp Hours: 3.0Ah
Charger Included: Yes (M18 & M12 Multi-Voltage Charger)
Warranty: 3 Years on Base, 1 Year on Tank, 3 Years on Battery

Milwaukee 3019-21WS M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit Warranty

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

Why Customers Choose the Milwaukee M18 4-Gallon Water Supply Kit w/ SWITCH TANK 3AH Kit

The Milwaukee M18 SWITCH TANK 4-Gallon Water Supply Kit is an essential tool for professionals needing a reliable and portable water delivery system. Whether you’re cutting concrete, controlling dust, or managing outdoor water applications, this battery-powered system eliminates manual effort and improves efficiency. The interchangeable tank design ensures flexibility and cost savings, making it a smart investment for contractors and tradespeople alike.