Milwaukee 2820-21WS M18 Switch Tank 4 Gallon Backpack Water Supply Kit

Original price was: $526.00.Current price is: $64.80.

SKU: KFGZ01628 Category:
Description

The Milwaukee M18 Switch Tank 4 Gal. backpack water supply kit is the industrys 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 to 60 psi for ultimate control. The 4 Gal. 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 Gal. water supply is made up of two components the M18 Switch Tank powered base and the Switch Tank 4 Gal. water supply tank assembly. The powered base includes the motor battery compartment and Redlink electronics. The interchangeable tank assembly includes the pump 10 ft 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 Gal. concrete sprayer 49-16-28CS and 4 Gal. sprayer 49-16-28PS tank assemblies. The M18 Switch Tank 4 Gal. 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.

  • 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 transport and storage
  • Compatible with SWITCH TANK Concrete Sprayer and Pesticide Tank Assemblies
Shipping & Delivery

Reviews

★★★★☆

"Picked the matte black and the compartments keep everything organized. Used it for a week of meal prep. Took a day longer than estimated to arrive, no big deal. Exactly what I needed."

Olivia Jackson Olivia Jackson Jun 1, 2026
★★★★☆

"Packaging was secure and nothing moved. Compartments keep everything organized. I've been using it daily for about two weeks now. Slightly heavier than expected, still well balanced though. I'm in Columbus, OH. Couldn't ask for more at this price."

Justin Ward Justin Ward Jun 25, 2026
★★★★☆

"Picked the red option and it heats up fast and evenly. I keep it in the car for road trips. Customer service was helpful when I had a question."

Jacob Miller Jacob Miller Aug 12, 2026
★★★★★

"Order processed quicker than the estimate. It's handled my daily dog walks without issue. Glad I went with this one."

Travis Singh Travis Singh Jun 25, 2026
★★★★★

"Got the olive green and it does exactly what it's supposed to do. Carried it through a busy work week. Instructions could be a bit clearer, but I figured it out. Would buy again."

Donna Scott Donna Scott Aug 2, 2026
★★★★☆

"Packaging was secure and nothing moved. Brought it camping and it held up fine. Glad I went with this one."

Shirley Stewart Shirley Stewart Aug 1, 2026
★★★★☆

"Got the white finish and setup took me less than five minutes. Brought it to a tailgate and it performed. Took a day longer than estimated to arrive, no big deal. I'm in Kansas City, MO. Solid deal, no regrets."

Brian Jones Brian Jones Jul 25, 2026
★★★★★

"Ordered two in different colors and the weight feels balanced and premium. It's handled my daily dog walks without issue. Took a minute to snap together, fits great now. I'm in Oklahoma City, OK. Solid deal, no regrets."

Thomas Thompson Thomas Thompson Jul 16, 2026
★★★★★

"Came earlier than the promised date. It's handled my daily dog walks without issue. Packaging tape was loose on one end, product was fine. Exactly what I needed."

Elizabeth Sanchez Elizabeth Sanchez May 25, 2026
★★★★★

"Ordered the limited edition and the material feels solid and well-made. Used it during a move and nothing shifted. One minor scuff on the corner, purely cosmetic. I'm in Sacramento, CA. Would buy again."

Jack Phillips Jack Phillips Aug 9, 2026