Milwaukee M18™ 4-Gallon Backpack Sprayer w/ SWITCH TANK™ (Tool Only)
SKU: 37387876432

Milwaukee M18™ 4-Gallon Backpack Sprayer w/ SWITCH TANK™ (Tool Only)

Sale price$220.95 Regular price$245.50
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Milwaukee M18™ 4-Gallon Backpack Sprayer w/ SWITCH TANK™ (Tool Only)Product Overview Our M18 4 Gallon Backpack Sprayer w SWITCH TANK delivers the industry's best pressure control with no manual pumping and an interchangeable tank design. Designed to meet the needs of professional landscape maintenance, the battery powered backpack sprayer provides instant, constant, and adjustable pressure up to 140 PSI and a 24 ft vertical spray distance. The 5 mode flow rate knob adjusts the flow by 0. 1 0. 52 GPM, giving you the

Product Overview

Our M18™ 4-Gallon Backpack Sprayer w/ SWITCH TANK™ delivers the industry's best pressure control with no manual pumping and an interchangeable tank design. Designed to meet the needs of professional landscape maintenance, the battery-powered backpack sprayer provides instant, constant, and adjustable pressure up to 140 PSI and a 24 ft vertical spray distance. The 5-mode flow rate knob adjusts the flow by 0.1 – 0.52 GPM, giving you the capability to complete a wide range of applications. Our M18™ REDLITHIUM™ XC4.0 Battery (sold separately) provides you with up to 20 tanks of spraying per charge (on Mode 3). The 4-Gallon Sprayer Tank Assembly features a dual diaphragm pump for longer pump life and Viton® seals for increased durability against harsh chemicals. The sprayer tank has an optimized design for better weight distribution, a wide mouth opening for easier pouring, and a strainer that filters debris from getting into the tank. The backpack frame includes padded straps, lumbar support, and a hip belt, giving you added comfort during extended spraying applications. The 4-Gallon Sprayer is made up of two components – the M18™ Powered Base and the 4-Gallon Sprayer Tank Assembly. The Powered Base includes the motor, battery compartment, and REDLINK™ electronics, while the interchangeable Tank Assembly includes the pump, hose, and wand. The isolated pump, hose, and wand design allows you to add on tank assemblies for different spraying applications, eliminating cross-chemical contamination. The Powered Base is compatible with the 4-Gallon Water Supply Tank Assembly (49-16-19WS). Our M18™ 4-Gallon Backpack Sprayer w/ SWITCH TANK™ is part of the M18™ system, which is fully compatible with over 275 tools.


  • Instant, Constant and Adjustable Pressure for Ultimate Control

  • Add-on Interchangeable Tank Assembly to Eliminate Cross-Chemical Contamination

  • Run-time: Up to 20 tanks per charge with M18™ REDLITHIUM™ XC4.0 Battery on Mode 3

  • Adjustable padded harness with lumbar support and padded hip strap for added comfort

  • Optimized design for better weight distribution

  • Dual Diaphragm Pump: For Longer Pump Life

  • Critical seals: Viton® for increased durability against chemicals

  • Wide Mouth Opening for Easier Pouring

  • High visibility tank markings for easy fill management

  • Tank identification stickers for easy tank identification

  • Easy access latches for quick battery and tank swaps

  • Compatible Tank Assemblies: 4-Gallon Water Supply (49-16-19WS) & 4-Gallon Backpack Sprayer (49-16-19PS)


In The Box
(1) 4-Gallon Sprayer Tank Assembly w/ SWITCH-TANK™
(1) Backpack Sprayer Hose Handle and Wand Assembly


Specs

Battery System
M18™


Tank Capacity
4 gal


SWITCHTANK™ Compatible
Yes


Number Of Pressure Settings
5


Vertical Spray Distance
24 ft


Maximum Pressure
140 psi


Weight
17.4 lb


Motor Type
Brushed


Warranty
3 Year Base, 1 Year Tank

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37387876432

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the_Mrs.C
Lexington, US
★★★★★ 5
Love it!
This fits on my counter perfectly! It’s built well and hold so much things!
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Reviewed in the United States on March 27, 2026
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Amazon Customer
Los Angeles, US
★★★★★ 5
Works well
Works well
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Reviewed in the United States on March 8, 2026
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froggydog2
Fort Morgan, US
★★★★★ 5
Great looking sink organizer.
Works perfectly on the edge of my sink. Holds everything I need to contain for using in and around sink area. Nice looking and very functional A+++++++++
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Reviewed in the United States on December 13, 2025
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Crystal
Lexington, US
★★★★★ 5
Great addition to the sink
I love the stone that absorbs the water
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Reviewed in the United States on January 14, 2026
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María
Lexington, US
★★★★★ 5
Perfecto
Me encantó. Tiene el tamaño perfecto para el jabón de biberón, el jabón de manos y el jabón de manos. Era lo que estaba buscando. Es exactamente igual a la foto
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Reviewed in the United States on November 21, 2025

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