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DEWALT

DEWALT 20V* Lithium-ion Battery Powered Backpack (Tool Only), 4 Gallons

  • Based on 416 reviews
Condition: New
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Availability: 20 left in stock
Fulfilled by Country Basics
Arrives Wednesday, Oct 21
Order within 13 hours and 23 seconds
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Features

  • Heavy-duty nylon-reinforced hose effectively avoids kinking
  • Variflo technology efficiently adjusts the flow of operator
  • Triple-filtration system helps minimize clogging

Description

The DEWALT 4 Gallon 20V MAX Lithium-Ion Powered Backpack Sprayer has been built to outperform outlast and finish the job in less time - with no more pumping. The lithium-ion powered backpack sprayer has Variflo technology which allows the operator to adjust the flow for multiple applications using specific nozzles for consistent spraying. This sprayer has a deluxe harness with wide padded shoulder straps that fit snuggly across the torso and curve to the contour of the user's body.

Brand: DEWALT


Tank Volume: 4 gallons


Color: Yellow


Recommended Uses For Product: Fertilizer sprayer, Pest Control, Weed Control


Material: Polypropylene (PP)


Brand Name: DEWALT


Recommended Uses For Product: Fertilizer sprayer, Pest Control, Weed Control


Included Components: Tool Only


Model Name: DEWALT 20V* Lithium-ion Battery Powered Backpack (Tool Only), 4 Gallons


Model Number: DXSP190681B


Manufacturer Warranty Description: 3 year limited warranty


UPC: 841688007079


Number of Items: 1


Unit Count: 1 Count


Item Type Name: DEWALT 20V* Lithium-ion Battery Powered Backpack (Tool Only), 4 Gallons


Manufacturer: The Fountainhead Group Inc.


Manufacturer Part Number: 190742


Tank Volume: 4 gallons


Item Weight: 16.3 pounds


Item Dimensions W x H: 10"W x 22.5"H


Hose Length: 50 inches


Material Type: Polypropylene (PP)


Color: Yellow


Style Name: Adjustable,Curve,Deluxe


Power Source: Battery Powered


Maximum Pressure: 3000 psi


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Must have and works great
I love this sprayer. Heavy when full but worth it. The weight is evenly distributed when wearing on your back with the shoulder straps. Might need help putting it on unless you have a high enough table. It works great and one of the best purchases I’ve ever made. Makes spraying so much better and efficient. Plus it’s dewalt so that helps with my platform. It’s very well made as well ... show more
Reviewed in the United States on July 14, 2026 by Tommy D.
    • Great Value - Excellent Performance
Great product. I have a lot of fence line to spray for weeds. This electric sprayer works very well. I found it to be well made and the back pack assembly distributed the weight (+/-45 pounds) comfortably. I used a 6 Amp battery and the pump performed flawlessly for three complete, 4 gallon each, cycles. No leaks and the hose and wand were perfectly placed for my use (right handed). I'm 5' 10" tall and weigh 250 - the straps adjusted for me easily. One suggestion - when the backpack is full, place on a table, straps out, and back into the harness, tightening as you go. Highly recommend. ... show more
Reviewed in the United States on July 24, 2026 by Glenn S.
    • Dewalt Sprayer - Excellent!
I was initially skeptical about the price of this sprayer, but since I already owned a DeWalt drill battery, I decided to give it a try. Having used both 2-gallon and 4-gallon manual pump backpack sprayers in the past, I can say there is simply no comparison; this electric sprayer is a game changer. What normally takes me 45 minutes to complete was finished in about 15 minutes. The efficiency is incredible, as I no longer have to stop and pump every few minutes. While it has the weight you would expect from a 4-gallon backpack, it is manageable, and I found that filling it with 2 gallons was plenty for my needs. For those who prefer not to carry it, some companies make wheeled trolleys to pull the unit behind you. The unit is very quiet, features 10 spray settings, and produces an excellent spray pattern that can reach long distances. The build quality is sturdy, and the shoulder harness is extremely comfortable. I used a small 1.5 Ah battery to spray around my house, pool, deck, and pavilion, and it still showed a full charge when I was finished. I am so impressed that I am getting rid of my manual sprayers. If you are looking to upgrade your equipment (Man Card), I HIGHLY recommend this DeWalt sprayer. 10 stars. ... show more
Reviewed in the United States on February 26, 2026 by Brent Henry
    • Professional Quality
Tested this tool for the first time today spraying 5 gallons (2 batches) of dormant oil spray and oil spray + copper in my orchard. The spray is powerful enough to reach my tallest trees (about 25 ft), and can also be adjusted to a fine spray that coats leaves and small branches well. No leaks in any fittings, nor even the filling cap because it has a one-way valve to let air in. I needed to lean a bit to the left and forward as it got down to the last 1/4 gallon, but the tank sprayed out everything out but about a cup-full of spray. Easy to clean and after putting it away, my 5 amp-hour battery still had a full charge. Not too heavy, and the shoulder and waist straps are well made and comfortable. The power control and on/off are ease to reach with it on my back. Time will tell how it holds up. ... show more
Reviewed in the United States on February 12, 2026 by David
    • Reaches far.
Good product at a good price. Sprays farther than expected.
Reviewed in the United States on September 30, 2026 by Gary Ferriman
    • Great control and great engineering = joy to use
This tank is tough and ready for work. It seems very well engineered. Read the directions and you will have no problem getting this setup to tackle small/medium/large yard chores. I have used it a half dozen times so far and am very impressed, whether I am just spot-spraying small doses, or laying out large doses. Excellent control with minimal hassle. ... show more
Reviewed in the United States on August 23, 2026 by Xparatrooper
    • Works like a Pro and disnt dissapoint. Got it
Works like a charm. It is heavy when fully loaded, but beats repearedly filling and carrying 1 gallon hand pumps to complete a single job. Several tip options to select from are included. I purchased the bare tool because i have plenty of batteries and chargers already. Kept the cost down. My advice, and DeWalt’s recommendation from the owner manual, is to practice first with all of them until you find the desired tip and adjustable pump pressure to suit your need. . Then load your product and your you're off. Note, There will be leftover product that the pump wont pick up. Empy this in your hand pump sprayer for quick and easy spot treatments later, if needed. It Primed for me immediately and works great for big applications over my yard. ... show more
Reviewed in the United States on June 11, 2026 by Amazon Customer
    • Great Product
Really happy with this sprayer. Super easy to use. Cleaning process is easy as well. Definately worth the money instead of the traditional punch arm. Great purchase for the prize. Size is easy to wear on the back. No leak issues. Very pleased!
Reviewed in the United States on August 30, 2026 by Randol

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