Internet #303585241

Model #P2840

Store SKU #1002832205

Store SO SKU #1002824708

ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included

  • Over 175 ONE+ Tools – All Work With Any RYOBI ONE+ 18V Battery
  • Over 40 Gallons per Charge with any ONE+ Lithium-Ion Battery
  • No Pumping Required
  • See More Details
$14900

Frequently Bought Together

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Price:
$14900

Product Overview

18-Volt Battery Platform

18-Volt Battery Platform

No matter your interests or skill level, we can power it. With cordless lithium-ion technology, RYOBI can power you through all types of projects from drilling, driving, cutting, and fastening, to lighting, plumbing, cooling, and rocking, to trimming, edging, mowing, and clearing – and so much more.

World’s Largest 18V Tool System

World’s Largest 18V Tool System

RYOBI gives you the ultimate in versatility and selection to get the job done. From household tasks to the jobsite to recreation and everything in between, there is a ONE+ product for you.

RYOBI ONE+™ Delivers More

RYOBI ONE+™

RYOBI has never changed – and will never change – the 18V ONE+ battery platform, meaning our newest products & batteries fit the original RYOBI tools and batteries from 1996. RYOBI ONE+ is the system that delivers more.

Optimized for Cordless Efficiency

OPTIMIZED FOR CORDLESS EFFICIENCY

With over 40 gallons per battery charge, this chemical sprayer is designed for cordless efficiency and removes the need to manually pump

Comfortable Backpack Design

COMFORTABLE BACKPACK DESIGN

The comfortable backpack design with adjustable shoulder straps allows you to work longer

Adjustable Nozzle

ADJUSTABLE NOZZLE

Easily adjust the spray pattern for a variety of applications

Tackle Your Toughest Jobs

TACKLE YOUR TOUGHEST JOBS

The included 2.0 Ah Lithium-Ion battery provides over 40 gallons per charge allowing you to get more done with no pumping required

One 18V ONE+ Tool Included

One 18V ONE+ Tool Included

This kit includes a chemical sprayer, battery and charger

18V Lithium

18V Lithium

Lithium-ion battery technology with fade-free power and Extreme Weather Performance to withstand the toughest conditions.

3 Year Limited Warranty

3 Year Limited Warranty

RYOBI Portable Power Tools and Bench/Stationary tools purchased on or after 1.1.11 are covered by a 3-year warranty.

World’s Largest

World’s Largest

The RYOBI 18V ONE+ System gives you the ultimate in versatility and selection.

What’s Included

What’s Included

This kit includes one 2.0 Ah battery and charger

90 Day Guarantee

90 Day Guarantee

Buy with confidence with our 90 day no-risk satisfaction guarantee.

The RYOBI ONE+ 18-Volt 4 Gal. Backpack Chemical Sprayer combines the convenience of a cordless sprayer with a backpack design to allow you to work quickly and comfortably. This sprayer is powered by a ONE+ 18-Volt battery and sprays up to 40 Gal. per charge - with no pumping required. It comes equipped with an adjustable spray and flat fan nozzle allowing you the versatility to spray for a variety of applications. The large, translucent 4 Gal. tank allows you to take on larger jobs and easily monitor your fluid levels while you work. The RYOBI 18-Volt 4 Gal. Backpack Chemical Sprayer comes with an 18-Volt 2.0 Ah battery and charger, and is backed by a three year warranty.

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

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BrandRYOBIRYOBIChapinChapin
NameONE+ 18-Volt 4 Gal. Lithium-Ion Cordless Backpack Chemical Sprayer with Battery and Charger Not IncludedONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included4 Gal. Rechargeable 24-Volt Lithium-Ion Battery Powered Backpack Sprayer4 Gal. Rechargeable 20-Volt Lithium-Ion Battery Powered Backpack Sprayer
Price
$13900
$14900
$19742
$20015
Ratings
(490)
(550)
(120)
(68)
Sprayer FeaturesAdjustable Spray Tip,Backpack,Shoulder StrapAdjustable Spray Tip,Backpack,Shoulder StrapAdjustable Spray Tip,Backpack,Shoulder StrapAdjustable Spray Tip,Shoulder Strap
Capacity (gallons)4444
Sprayer UseChemical,Fungicide,Grass Killer,Pesticide,Weed Killer Chemical,Fungicide,Grass Killer,Pesticide,Weed KillerFungicide,Grass Killer,Pesticide,Weed Killer
IncludesSprayer OnlySprayer OnlySprayer OnlySprayer Only
View ProductView ProductView ProductView Product

Specifications

Dimensions

Hose length (in.)
48
Product Depth (in.)
21 in
Product Height (in.)
15 in
Product Length (in.)
21 in
Product Width (in.)
13 in

Details

Adjustable spray tip
Yes
Applicator type
Sprayer/Mister
Battery Amp Hours
2 Ah
Battery/Charger
(1) 2 Ah Battery & Charger Included
Capacity (gallons)
4
Charger Included
Charger Included
Includes
Sprayer Only
Number of Total Batteries Included
1
Returnable
180-Day
Shoulder strap
Yes
Sprayer Features
Adjustable Spray Tip,Backpack,Shoulder Strap
Sprayer/mister type
Backpack
Tank Material
HDPE (High Density Polyethylene)

Questions & Answers

134Questions22Answers

What is the output GPM without any nozzle attached? I saw 0.2-0.4 GPM in previous posts answered ...

Asked by kk October 23, 2020
2
Answers

Without a nozzle attached? 0.2-0.4 GPM seems impossibly slow. I’d say inaccurate frankly. I installed a T-Jet nozzle and get about 0.7 gal per minute and I adjust my walk speed to that.

looking to spray both Wonderdeck wood cleaner and Wonderdeck clear cedar finish, will this spraye...

Asked by wolf October 9, 2020
2
Answers

Hi Wolf, The RYOBI ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included P2840 product is to be used with only consumer grade water-based lawn and garden chemicals. Thanks for your question! - Eve

why does it leak from the top?

Asked by joe September 20, 2020
2
Answers

Mine doesn't leak like that. Screw the top down tighter!

Does it include different spray tips

Asked by KAHUNA September 19, 2020
3
Answers

Hello Aaron, RYOBI P2840 ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer comes with two nozzles. The fan nozzle provides a flat spray. The cone nozzle adjusts the flow of liquid from a stream to a cone spray. There are no accessory nozzles available. Thanks for asking! - Eve

What does it weigh?

Asked by Shondore August 26, 2020
2
Answers

Hi Shondore, Thanks for your question and I apologize for the delay in response. This RYOBI ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included P2840 weighs 17.67 lbs with not product in the tank. I hope this helps and we appreciate your interest in RYOBI ! - Eve

Do you have a sprayer that works with bleach products?

Asked by Jesta August 26, 2020
1
Answer

Hello Jesta, Thanks for your interest in the RYOBI ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included P2840. Bleach is high in alkalinity and will damage the pumps components. We are currently producing sprayers that are geared toward disinfecting (no bleach use) and hopefully they will be available for purchase soon. I hope this helps. -Eve

Can this be used as an electrostatic sprayer?

Asked by Feegee August 21, 2020
3
Answers

No, It does not carry the electrostatic charge. When set at mist the finest of spray it is similar but the electrostatic charge causes the bonding coverage that adheres the spray to the object.

The spray nozzle is too dense. Is there a misting spray nozzle I can purchase that will be compat...

Asked by InQM64879 August 20, 2020
3
Answers

Hello InQM64879. Thanks for your interest in the RYOBI ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included. This sprayer comes equipped with an adjustable spray and flat fan nozzle allowing you the versatility to spray for a variety of applications. There are no misting nozzles available. - Eve

What is the psi range?

Asked by KA August 13, 2020
2
Answers

Thanks for your question, KA. The PSI range of this RYOBI P2840 ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included is between 65 and 90 PSI. - Eve

Can I buy this without the battery and battery charger

Asked by Tom August 8, 2020
2
Answers

Hello Tom, Thanks for your question on the RYOBI P2840 ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included. Yes, for the sprayer only use Model# P2804A. - Eve

ONE+ 18-Volt Lithium-Ion Cordless 4 Gal. Backpack Chemical Sprayer - 2.0Ah Battery and Charger Included - page 2

Customer Reviews

  • 551 Customer Reviews
  • 4.6 out of 5 stars overall
96% of customers recommended.
Overall Ratings
5star-icon(401)
4star-icon(106)
3star-icon(17)
2star-icon(5)
1star-icon(22)
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Puerto Rico
Great features
Customer review from ryobitools.com logo
Im so happy with my buying. I'm very happy with the product [This review was collected as part of a promotion.]
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I bought this a few weeks ago and have used it a couple times for weed control and pest control. ...
I bought this a few weeks ago and have used it a couple times for weed control and pest control. It works very well. I like that I can use any of my Ryobi 18v batteries with it including my 9 amp. I haven't had any issues with it. It is well constructed and the liquid container cleans up well even when using marker dyes. The tank empties very well with nearly all liquid being used. The system precharges the hose without having to prime it. I did end up buying a replacement nozzel that had a slightly different pattern and flow rate but the included ones work quite well and are easy to change.
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3
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Pennsylvania
Amazing product
Customer review from ryobitools.com logo
We love this got a few months ago and use it weekly so convenient [This review was collected as part of a promotion.]
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0
0
Super convenient
Customer review from ryobitools.com logo
I bought this for a disinfecting job and is doing an amazing job [This review was collected as part of a promotion.]
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0
0
Very impressive backpack sprayer!
Customer review from ryobitools.com logo
I bought this to complete our yard, was able to complete the entire yard in a single charge, very consistent spray and very happy with my purchase! Highly recommend! [This review was collected as part of a promotion.]
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Merrick by
Great functionality
Customer review from ryobitools.com logo
It is very light and very simple to use I love it and it’s the best of the best [This review was collected as part of a promotion.]
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0
0
New jersey
Great sprayer
Customer review from ryobitools.com logo
I am pleased with the sprayer ,it has good pressure , looks like its built sturdy straps are decent, better than others(competitors) i know the battery should last ryobi has good batteries.the only thing that they could improve would be the pick up tube just floats around. So if your sprayer is not spraying and straining to spray. Its the pickup tube sucking in air. What i did was tie a fishing sinker to the bottom of the pickup tube and it works great. They should fix it to the bottom , or use some kind of clip or suction to keep ot there. Other than that im happy. And it has a 3 year warranty. [This review was collected as part of a promotion.]
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0
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Utah
Great for homeowners
Customer review from ryobitools.com logo
I have used this Backpack sprayer about 4 times and love it so far. It's so much better than the hand pump style. The wand is easy to grip and the hose is plenty long. I have other Ryobi tools so it's convenient switching out the batteries. The one downside I've noticed while using it, is that there remains a lot of liquid in the tank when the suction goes out. Not sure If it's supposed to do that or what, but so far I'm enjoying this. [This review was collected as part of a promotion.]
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Love every Ryobi one plus tool I have! Glad...
Love every Ryobi one plus tool I have! Glad to have this added to my collection!
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