---
product_id: 425027570
title: "Dewalt 190681 20V MAX 4 gal. Lithium-ion Cordless Backpack Sprayer Kit (2 Ah)"
brand: "dewalt"
price: "$1451"
currency: NZD
in_stock: true
reviews_count: 8
category: "Dewalt"
url: https://www.desertcart.nz/products/425027570-dewalt-190681-20v-max-4-gal-lithium-ion-cordless-backpack
store_origin: NZ
region: New Zealand
---

# 20V MAX Lithium-ion power Ergonomic padded harness Triple-filtration system Dewalt 190681 20V MAX 4 gal. Lithium-ion Cordless Backpack Sprayer Kit (2 Ah)

**Brand:** dewalt
**Price:** $1451
**Availability:** ✅ In Stock

## Summary

> 🎯 Spray Smarter, Work Harder – The Ultimate Cordless Powerhouse

## Quick Answers

- **What is this?** Dewalt 190681 20V MAX 4 gal. Lithium-ion Cordless Backpack Sprayer Kit (2 Ah) by dewalt
- **How much does it cost?** $1451 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/425027570-dewalt-190681-20v-max-4-gal-lithium-ion-cordless-backpack)

## Best For

- dewalt enthusiasts

## Why This Product

- Trusted dewalt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Comfort Fit:** Deluxe padded shoulder straps and adjustable hip harness distribute weight evenly, reducing fatigue during extended use.
- • **Built Tough to Last:** Heavy-duty nylon-reinforced hose with kink prevention and chemically resistant Viton seals ensure durability against harsh chemicals.
- • **Custom Flow Control:** Variflo® technology lets you precisely adjust spray flow for versatile applications and consistent coverage.
- • **Clog-Free Confidence:** Advanced triple-filtration system minimizes clogging for uninterrupted, professional-grade spraying.
- • **Power Through Your Day:** 20V MAX lithium-ion battery delivers long-lasting cordless performance with up to 3/4 battery life after 21 gallons sprayed.

## Overview

The DEWALT 190681 20V MAX 4 Gal. Lithium-ion Cordless Backpack Sprayer Kit combines powerful cordless operation with ergonomic design and advanced filtration technology. Featuring Variflo® adjustable flow, a heavy-duty nylon-reinforced hose, and a triple-filtration system, it delivers professional-grade spraying with minimal clogging. Its padded harness and adjustable hip strap ensure comfort during prolonged use, while chemically resistant Viton seals guarantee durability. Perfect for pest control, weed management, and sanitizing, this sprayer is engineered to outperform and outlast in demanding outdoor tasks.

## 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.

Review: Good quality, and not too heavy. - Reading reviews before I purchased this, I was a little concerned because people said it was heavy. I have used both Solo and Echo hand pump backpack sprayers over the years as a Private Applicator. Honestly, I can’t say it was much heavier than either of those. I started by putting it on the back of my golf cart and driving around. It is top heavy and would fall forward if I hit a bump. Next I tried walking with it and it was comfortable and worked well. I used a DeWalt 8AH battery. I sprayed a total of 21 gallons of herbicide (5 batches and a clean-up) and there were still 2 of the 3 green lights on indicating it had only used 1/3 of the battery. I’m impressed with it and think I made a great purchase.
Review: fantastic sprayer. - This thing is AWESOME !!!!!! I can't tell you how much I love this sprayer. I have been spraying Permethrin around the house to kill off the bugs. This works great with little effort. When you fill it to 4 gallons it gets a bit heavy (think of it as a workout with a backpack :). It does have waist straps so that helps out a lot. With 4 gallons, I'm able to go around my whole house and spray to kill of the bugs. Works great. I would definitely buy it again in a heartbeat especially since many of my powertools are from DeWalt and use the same battery packs. Side note. When you get it, you might need to prime it. Getting a garden hose and blasting water into the vent (as suggested) worked REALLY well. After that, it works every time without priming it.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #20,300 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #105 in Lawn & Garden Sprayers |
| Brand | DEWALT |
| Color | Yellow |
| Customer Reviews | 4.6 out of 5 stars 232 Reviews |
| Material | Stainless Steel , Heavy-duty nylon-reinforced hose |
| Product Dimensions | 10"W x 22.5"H |
| Recommended Uses For Product | Garden sprayer, Pest Control, Sanitizing, Weed Control |
| Tank Volume | 4 Gallons |

## Product Details

- **Brand:** DEWALT
- **Color:** Yellow
- **Material:** Stainless Steel, Heavy-duty nylon-reinforced hose
- **Recommended Uses For Product:** Garden sprayer, Pest Control, Sanitizing, Weed Control
- **Tank Volume:** 4 Gallons

## Images

![Dewalt 190681 20V MAX 4 gal. Lithium-ion Cordless Backpack Sprayer Kit (2 Ah) - Image 1](https://m.media-amazon.com/images/I/51Agbtx2GOL.jpg)

## Questions & Answers

**Q: Will the 5 amp hour batteries work with this or must you use the 2 amp hour batteries?**
A: 5 amp batteries should work…. So should flex volt batteries.

**Q: Can this sprayer be used to seal fresh concrete?**
A: I would not use this for sealer..use a cheap one, or buy one the is made for chemicals

**Q: can I use round up in it?**
A: Yes you can put what ever you want in it.

**Q: What is the psi that is generated from this sprayer?**
A: The box says 90 "max" psi, with ** asterisks that seem to depend on which nozzle you use.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality, and not too heavy.
*by P***S on December 28, 2025*

Reading reviews before I purchased this, I was a little concerned because people said it was heavy. I have used both Solo and Echo hand pump backpack sprayers over the years as a Private Applicator. Honestly, I can’t say it was much heavier than either of those. I started by putting it on the back of my golf cart and driving around. It is top heavy and would fall forward if I hit a bump. Next I tried walking with it and it was comfortable and worked well. I used a DeWalt 8AH battery. I sprayed a total of 21 gallons of herbicide (5 batches and a clean-up) and there were still 2 of the 3 green lights on indicating it had only used 1/3 of the battery. I’m impressed with it and think I made a great purchase.

### ⭐⭐⭐⭐⭐ fantastic sprayer.
*by F***D on December 30, 2025*

This thing is AWESOME !!!!!! I can't tell you how much I love this sprayer. I have been spraying Permethrin around the house to kill off the bugs. This works great with little effort. When you fill it to 4 gallons it gets a bit heavy (think of it as a workout with a backpack :). It does have waist straps so that helps out a lot. With 4 gallons, I'm able to go around my whole house and spray to kill of the bugs. Works great. I would definitely buy it again in a heartbeat especially since many of my powertools are from DeWalt and use the same battery packs. Side note. When you get it, you might need to prime it. Getting a garden hose and blasting water into the vent (as suggested) worked REALLY well. After that, it works every time without priming it.

### ⭐⭐⭐⭐⭐ Excellent sprayer
*by J***W on February 4, 2026*

Compared to my previous sprayer, this is game changer. Great battery life. Definitely worth investing in if you use a sprayer frequently over large areas.

## Frequently Bought Together

- Dewalt 190681 20V MAX 4 gal. Lithium-ion Cordless Backpack Sprayer Kit (2 Ah)
- DEWALT 20V MAX 5 Ah Lithium Ion Battery 2-Pack (DCB205-2)
- DEWALT 20V MAX* Charger, 4-Port, Rapid Charge (DCB104) , Black/Yellow

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-11*