Search  for anything...

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

  • Based on 141 reviews
Condition: New
Checking for the best price...
$248.00 Why this price?
New Year Deal · 14% off was $289.99

Buy Now, Pay Later


As low as $41.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Only 5 left in stock, order soon!
Fulfilled by Hearthshire

Arrives Thursday, Jan 15
Order within 11 hours and 27 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

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 Gal. 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 snug across the torso and curve to the contour of the user's body. An adjustable hip harness assists with weight distribution, relieving burden from the user's shoulders. Multiple nozzle tips are included for versatility in both application rates and patterns and can be stored on the included nozzle clip. Equipped with a comfort grip handle and lock-on mechanism, this shut-off system can be easily operated with heavy-duty work gloves. It includes a 50 in. heavy-duty nylon-reinforced hose and strain relief system preventing the hose from kinking at the chemical exit point. This sprayer unit is also equipped with chemically resistant Viton seals throughout to withstand the effects of harsh chemicals. Whether it's for weeding and feeding, or controlling pests - users are equipped for the Job. It's GUARANTEED TOUGH.

Brand: DEWALT


Power Source: Battery Powered


Color: Yellow


Item Weight: 16.3 Pounds


Hose Length: 5E+1 Inches


Tank Volume: 4 Gallons


Maximum Flow Rate: 4 Gallons Per Minute


UPC:


Brand: DEWALT


Power Source: Battery Powered


Color: Yellow


Item Weight: 16.3 Pounds


Hose Length: 5E+1 Inches


Tank Volume: 4 Gallons


Maximum Flow Rate: 4 Gallons Per Minute


UPC: 841688007079


Product Dimensions: 10 x 10 x 22.5 inches


Item Weight: 16.27 pounds


Manufacturer: The Fountainhead Group Inc.


Item model number: DXSP190681B


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jan 15

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Nice unit
Works really well. Includes a speed control of sorts. Pretty handy being able to adjust volume through sprayer. Comes with several spray tips. Couple of fans, an adjustable cone shape, as well as a foaming. When full this is a bit heavier than some others, but it does have more harness assy. I am using 5 AH batteries. So far one battery fully charged has lasted two fillups, 8 gallons total. I will use the same battery on the next tank full to see how it goes. I tried another system by the same manufacture It was red, it came with a 2 AH battery and charger. The battery did not last the full 4 gallons. I’m spraying herbicides. ... show more
Reviewed in the United States on August 10, 2025 by Dan

  • well built with quality parts. Quality spray wand with multiple tips unlike mostsprayers.
Just started using the sprayer. High quality materials and great design. Found out that tool only means no battery or charger included. not a problem for me since I have several Dewalt 20 volt tools. I am able to operate the sprayer at half power setting, with plenty of pressure for spraying weeds.
Reviewed in the United States on September 11, 2025 by David M.

  • A needed luxury
After years of using a backpack sprayer with a pump handle, I'm spoiled rotten by this battery-powered sprayer. Just squeeze the handle and it sprays like a pro. They include various tips for various applications, but one tip does it for spot-spraying weeds in the field. It uses any DeWalt 20v battery including the big 60v variable battery. I'll never go back to the pump sprayer again - it's like going from a Chevy to a Mercedes. Spoil yourself. ... show more
Reviewed in the United States on August 2, 2025 by Lawyer Y.

  • DeWalt backpack cordless sprayer
They don't sell these in the UK so used a parcel forwarding company to import it to the UK. The transactions were seemless and took about 10 days to arrive. First. class sprayer. Build quality good and does the job perfectly. Runs well on my DeWalt 5 amp battery.
Reviewed in the United States on August 10, 2025 by Gordon

  • Workability of the back pack.
Easy to assemble real good spraying pressure and spray pattern adjustments. Comfortable to walk with it on your back with the 4 gallons of product your spraying.
Reviewed in the United States on July 29, 2025 by Guy Belair

  • Super Backpack Sprayer
This battery operated backpack pump sprayer made short work of spraying nearly 7 miles of fence line in just under 2.5 hours and shockingly only on one battery! The straps are comfortable and sprayer was easy to set up and use. The nozzle has a variety of settings (more than we will probably ever need) and we had zero issues with clogging or leaking. Highly recommend! ... show more
Reviewed in the United States on August 23, 2025 by Jon

  • Good product, but not for a weakling.
I liked this product. Since I had other Dewalt products, I did not need to buy a battery and a charger. The one significant drawback of this product is that when you fill it with 4 gallons, it becomes heavy. It makes you use it up fast to lessen the load. Because it is so heavy, you have to be very careful with your footing. The positive is that you can cover much ground. ... show more
Reviewed in the United States on August 22, 2025 by Jay Oza

  • Great product
Works great. We use this to fly spray our cattle and it sprays really far making it easy to reach all of them.
Reviewed in the United States on August 27, 2025 by Lisa Pack

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...