Return to Product Listing

18V ONE+™ 4 Gal. Backpack Chemical Sprayer

Model: #P2840 | Home Depot Sku #: 1002832205

Large 810e5dbd 6167 4e56 beaa 35f9c3e3ae04

Large eead8228 612c 493e a497 56dd2c2d5434

Large e89a7629 ea07 4c4a 9540 0ae1b3ebc4e1

Large 1b918f6e d689 4b25 88b0 b44ee1dcbebe

Large 6385c68d 4436 40b7 bbff 16243fbf1566

Large b8dd4708 adb0 4a49 bca7 c23b999dac46

Large 9fa01132 5d19 477c 94ba ebb50bc74b77

Large a6bfce56 f599 40df b8af ef9cbff3ba19

Large 139eeaaa 9f55 4943 b768 9ad4711b466a

Large 89abae5a a979 44b2 8fe5 1897c19d751a

Large 1ac1e30a df71 4009 b45c a31ba125ed5d

18V ONE+™ 4 Gal. Backpack Chemical Sprayer

18V ONE+™ 4 Gal. Backpack Chemical Sprayer is rated 4.5 out of 5 by 73.

Rated 5 out of 5 by Serna from Features couldn't get any better Best equipment i have bought in quite sometime. Easy to reach areas and quicker then ever

Date published: 2018-07-16

Rated 4 out of 5 by Unclegadget from Getting the job done! I've used this sprayer on a couple of occasions, and it works great. The only gripe I have is that it works better with the battery that came with the kit. What I mean, is the 2Ahr battery that came with the sprayer, will lock into the sprayer securely, and honestly, it's more than enough power to run the sprayer for hours. I had a fully charged 4Ahr battery from a battery kit that I tried to use the first time I used the sprayer and it didn't lock in, so every time I leaned back, the battery would come loose. I'd have to reach back and push it back into place to get the pump to power back up. with this one minor battery issue, this thing works great!

Date published: 2018-06-11

Rated 5 out of 5 by jacksgd from Works Great! I got this sprayer because my old manual pump sprayer was broken. I didn't wait to charge the 2Ah battery that it came with because I had a 4Ah battery already charged. I spayed four tanks full and the battery still had plenty of charge left. The only problem I have with this sprayer is that it is designed to be used with you right hand. I am left handed, but I could pull the hose under the tank to spray with my left hand.

Date published: 2018-02-21

Rated 5 out of 5 by Kaymo from Simplified my life immensly I have an acre and a half of land and over the years i have used a 2 gallon pump sprayer and it takes me half a day to spray for weeds, This little baby is AWESOME! i was done in less than an hour. The pressure is good and the nozzle easy to adjust. I am so glad to find this product this year! I will certainly be taking care of this useful tool. I made sure to rinse it out and spray it with clean water and then cleared the nozzle before storage. I own several RYOBI products and am a RYOBI Girl from here out! Thanks!

Date published: 2018-03-16

Rated 4 out of 5 by Happy10 from Works well, great price I bought this about a month ago for my large front yard. I am tired of using a 3 gal hand pump which i would of had to fill up about 8 time not to mention how many time punping it up. I really like how easy this works. Fill it up, put it on and just squeeze the handle, point and walk spraying my front yard. This sprayer cut my time in more than half of what i used to do with a hand pump sprayer. I am very happy with my purchase of this srayer.

Date published: 2018-03-18

Rated 4 out of 5 by Michaelfl from Redesign the wand to metal I like the unit but I wished it had the metal wand and nozzles like the hand held unit.

Date published: 2018-02-22

Rated 5 out of 5 by HigherElevations from Coil cleaning - indoor units Wanted a limited capacity powered sprayer for rinsing condenser coils in closet heatpumps. If the condensate drain system fails, a garden hose indoors can be disastrous. 4 gallons is enough for 60" x 30" coils. 3 gallons for 48" x 30" coils and the tray can hold 4 gallons if the pump fails. 60psig allows for cone pattern cleaning, typically covering the face twice. Never had to recharge during a shift... probably 3-4 hours runtime?

Date published: 2018-07-16

Rated 5 out of 5 by DukeLaCrosse from Looking for things to spray I purchased this about a month ago based on a friends review. We both had the pump sprayers and just hate them. My yard is bigger so he suggested I get the 4 gal sprayer. Its awesome. I have already sprayed my entire house with some wet and forget it type of solution and it only took me about 30 min...on a 4000sq ft house. My next targets are Fire Ants! Pumping is for old school.

Date published: 2018-03-27

18V ONE+™ 4 Gal. Backpack Chemical Sprayer Reviews - page 2

To easily distribute herbicides, pesticides and fertilizer in your yard, the RYOBI 18-Volt ONE+ Backpack Chemical Sprayer is the perfect tool. With no pumping required and a translucent 4 Gal. tank, monitoring fluid levels is simple. This Chemical Sprayer has a nozzle that adjusts for multiple spray patterns and the chemical tank cap doubles as a measuring cup. For additional convenience and the tool comes with a 2.0 Ah Lithium-Ion Battery and is backed by a 3-Year Warranty.

Add to Wish List

Snapchat

Product Videos

Spays 40 Gallons Per Charge*

No Pumping Required

Mesh Back & Adjustable Shoulder Straps

Adjustable Nozzle & Flat Fan Nozzle

Translucent Tank For Easy Fluid Level Reference

Power Source: 18V Lithium-Ion Battery

Tank Size: 4 Gal.

Pressure: 60 PSI

Tank Material: High Density Polethylene

Hose Length: 4 ft.

Nozzles: Adjustable & Flat Fan

Weight: 4.5 lbs.

18V ONE+™ 4 Gal. Backpack Chemical Sprayer

Spray Wand

Replacement Seals

Battery Lid

Adjustable & Flat Fan Nozzles

18V Lithium-Ion 2.0 Ah Battery

18V Lithium-Ion Battery Charger

Operators Manual

18V Backpack Chemical Sprayer - Model p2804

P2804_107370001_354_trilingual_04.pdf
Published: 01-18-2018
Filesize: 2.23 MB

P2804_107370001_503_Insert_Sheet_trilingual_01.pdf
Published: 12-01-2017
Filesize: 210 KB

P2804_107370001_354_r_05.pdf
Published: 08-31-2018
Filesize: 927 KB

10 in. Drill Press - Model dp101

DP101_909_eng.pdf
Published: 07-27-2001
Filesize: 417 KB

DP101_909_fr.pdf
Published: 07-27-2001
Filesize: 419 KB

DP101_909_sp.pdf
Published: 07-27-2001
Filesize: 426 KB

DP101_909_r.pdf
Published: 06-28-2006
Filesize: 308 KB

10 in. Drill Press with Laser - Model dp102l

DP102L_641_eng.pdf
Published: 09-15-2008
Filesize: 1.98 MB

DP102L_641_fr.pdf
Published: 09-15-2008
Filesize: 2 MB

DP102L_641_sp.pdf
Published: 09-15-2008
Filesize: 2.01 MB

DP102L_641_r.pdf
Published: 09-04-2014
Filesize: 212 KB

18 Volt Lithium-Ion Battery Pack - Model p102/p105

P102_P105_184_trilingual_06.pdf
Published: 08-04-2017
Filesize: 335 KB

18V Dual Chemistry Battery Charger - Model p118

P118_165_trilingual_04.pdf
Published: 07-19-2018
Filesize: 2.06 MB

Click the link below to access outdoor products replacement parts schematics and order parts online.

For those customers that prefer ordering by phone, simply contact the Ryobi master parts distributor at toll free 1-877-545-4110, and place your order over the phone.

Visit Ryobi Outdoor Parts Store