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HD4000 Battery Backpack Sprayer - 4 Gallon

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Original price $219.99 - Original price $879.96
Original price $219.99
$219.99 - $774.36
Current price $219.99
PetraTools HD4000 Backpack Sprayer supports all your spraying needs thanks to its multiple nozzle attachments and reliable battery. It can spray up to 15ft of expanded coverage with 6-8hrs of continuous application. Its versatile nozzle also allows you to quickly adjust between 40-70 PSI with a simple turn.
  • #1 Best Selling Backpack Sprayer on Amazon
  • 30-Day Money-Back Guarantee
  • 1 Year Warranty
  • Free Shipping with 2 to 3 Days FedEx Shipping
  • Guaranteed Post-Purchase Support
  • American Company



You hate buying a tool and getting no support. We get it. We did too. That’s why PetraTools provides industry leading sprayer support.


No “distributors” or hoops to jump through. Those other guys love to pass you off to their regional “distribution”. We make our sprayers AND support you through your jobs.

30-Day Money Back Guarantee

Your risk-free purchase is guaranteed with 30-day free returns.

Customer Reviews

Based on 235 reviews
Life is easier

The sprayer is so much nicer to lug around than a 100’ hose. I had some trouble with the extension part of the wand, but my problem was quickly fixed when I spoke with Dimitri at the company’s customer service (phone number is on a sticker on the backpack!). I sprayed 40 fruit trees with a foliar spray in less than an hour, using the sprayer for the first time. I am 5’6” and weigh 125lbs-the full sprayer holds 4 gallons, which is about 32 lbs plus weight of backpack. I carried it fine, although it is best to put on the backpack from a standing height. I will be using this sprayer a lot since I have so many trees and shrubs to care for now.

Denny Hemphill
Outstanding Product!!!!!

Great packaging. Easy instructions. Everything was there. FANTASTIC product!!!!! A+++++

Mel Lleras
TOP NOTCH Customer Service for troubleshooting

I actually purchased this unit in the spring (it is now fall) and have used it only a handful of times. Unit was easy to assemble and easy to use. It quickly became my favorite battery powered sprayer I've every used. Unfortunately, when I went to use it a week ago, the darn thing wouldn't spray. It would turn on, but it was like I couldn't get the battery to charge or something. The unit isn't cheap and I take care of it - making sure that it is cleaned after every use and properly stored... so when it stopped working, I wasn't thrilled. I wasn't angry cuz, I get it, stuff happens... but I wasn't thrilled.

Now, it took over a week to get a resolution... but that was because it took me days to respond back to Petra with information.... so the delay was completely on my end.

I contacted them right on FB messenger. I'm not on social media much and didn't realize I wasn't getting notifications when they would msg me back (hence the delay on my end). However, getting a resolution was as simple as describing the problem and then uploading a brief video of me trying to turn the unit on. They didn't ask for a video. I offered. As smoothly as they handled things and knowledgeable as they seemed, I'm not even sure the video was necessary.

Jenalee was the individual helping me out. It didn't take long after viewing the video for them to realize I had received a defective unit. Without any hassle whatsoever, they arranged to have a new unit shipped right to me without needing to go through the inconvenience of returning the defective unit.

For me personally, the customer service experience when I need help is at least as important as the product or service I purchase.

So petra is a company who has earned my future business and my referrals.

Pete M.
Sprayer seems to work well

Received today sprayed tanks of water to check different nozzles


I loved my sprayer until it started pulsating. Customer service though is awesome!!! Jay worked diligently to resolve my issue immediately and replaced my sprayer with a new one! 😊

Family Owned American Company

Located in the heart of Carlisle, Pennsylvania, we are a family owned and operated company that’s dedicated to our products and customers. With warehouse locations in Pennsylvania, Texas and Washington, we ship orders same-day*. *same-day shipping occurs most days Monday – Friday for orders before 10am est.