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 14 - Jul 19

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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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B. Naranjo
Massapequa, US
★★★★★ 4
works well and sturdy
Color: Silver
work well, keep my sink from getting "slimy" corners and soap buildup
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Reviewed in the United States on May 27, 2026
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DHB
Grantham, US
★★★★★ 5
Perfect for your sink organization
Color: Silver Grey
I have searched many sites for a product that will fit on our sink for all our kitchen and dishwashing needs and I finally found this product which proper fits with our kitchen decor and fits perfectly on our sink and it is very strong. I’m not worried about it breaking it anyway. Well with the price.
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Reviewed in the United States on May 24, 2026
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Adam
Alexandria, US
★★★★★ 5
Love it
Color: Mattle Black
We'd been looking for a sponge holder we liked for a while andy wife came across this one. We were not disappointed. It's plenty big to hold a handful of sponges and scrubbers, plus our hand soap. I like the design that lets excess water drip back into the sink. Looks pretty low profile and sleek too
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Reviewed in the United States on May 18, 2026
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Cathy
Battle Creek, US
★★★★★ 5
Keeps the water off your counter!
Color: Mattle Black, Color: Mattle Black
Works great! I’ve been looking for a solution to stop the sponge water from spilling onto the counter! Liked nice and neat. Great for keeping everything neat and organized. Size is perfect for sponges and nail brush and a small soap bottle.
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Reviewed in the United States on November 2, 2025
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donna kilgore
Fort Morgan, US
★★★★★ 3
3 of 5
Color: Mattle Black
It is functional, but doesn't sit flush on my sink or counter
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Reviewed in the United States on May 29, 2026

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