18V ONE+™ 1 Gallon Chemical Sprayer

Model: #P2800A

4.6 | 72 Reviews
To easily distribute herbicides, pesticides, and fertilizer in your yard, the RYOBI 18V ONE+™ Chemical Sprayer is the perfect tool. With no pumping required and a translucent 1 gallon tank, monitoring fluid levels is simple. This chemical sprayer has a durable brass nozzle that adjusts for multiple spray patterns and a detachable tank for removing excess liquid and cleaning. For additional convenience, the chemical tank cap doubles as a measuring cup and the tool can be used one handed or two handed depending on user preference. Backed by a 3 year warranty.


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This product is covered by a 3-year limited warranty.

The RYOBI 18V ONE+ System features over 175 unique products, giving you the ultimate in versatility and selection to get the job done.

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  • Power Source: 18V ONE+™ Battery
  • Tank Size: 1 Gallon 
  • Pressure: 45 PSI
  • Tank Material: High Density Polyethylene
  • Hose Length: 54"
  • Nozzles: Adjustable
  • Warranty: 3 Year


  • 18V ONE+™ 1 Gallon Chemical Sprayer
  • Operator's Manual


18V ONE+™ 1 Gallon Chemical Sprayer
18V ONE+™ 1 Gallon Chemical Sprayer is rated 4.6 out of 5 by 72.
Rated 1 out of 5 by from Disappointed My first was bought in 2019, at first I just tried it with water and was able to get a decent spray pattern, when I went to acutal spray chemicals with it about 10 months later I ciuld get a very weak stream only and no spray pattern. I went to Home Depot to get it sent for warranty repair, 4 1/2 months later I went to check and the repair depot closed it out as they couldn't repair it (no one contacted me). Home Depot did give me a new one to replace it but I had to argue to get the diagnostic fee credited (which they did do as well). I can only hope the new one works better when I really go to use it in another 8 or 9 months. It works now.
Date published: 2020-09-22
Rated 2 out of 5 by from Disappointing Upon the very first use of this sprayer I had problems with it working properly. The issue is with the little screen filter that is attached to the intake hose that goes into the tank. It constantly gets clogged causing the sprayer not to work.I used nothing more than standard weed killer in the sprayer. The only way to get this thing to spray properly is to omit the filter entirely, which I’m sure will shorten the life of the sprayer. I’m also not a fan of the constant “on” feature. I wish it just drew power on demand but that’s not nearly as much of an issue as the filter is.
Date published: 2021-02-28
Rated 5 out of 5 by from Service exceeds expectations I bought the 18 volt chemical sprayer and was sadly disappointed. I reported this and I was surprised to receive an email. Alex and Casey on the RYOBITOOLSREVIEWS team truly cared about my experience. We exchanged several emails and I was sent another chemical sprayer. I used it today and loved the power that was maintained throughout my job. It is service like this that I received from Alex and Casey that make me a Ryobi fan and will tell all of my family and friends. They wanted the old sprayer sent back, but due to Covid I was hesitant to go to the post office. They didn’t blink an eye and still sent me a replacement. tools are man-made and there will be malfunctions from time to time… Ryobi stands by their products 100%.
Date published: 2020-10-13
Rated 5 out of 5 by from Very Practical I bought this product along with an extra 2gal. tank. It is very practical. I use it to spray weed killer along the perimeter of my property. I use it while I ride with my mower along a 2-Acre yard. The smaller 1-gal tank I spray pesticide around the house. Very convenient to just pop the other tank to the sprayer (after i empty the line for a bit). I charged the battery when the tool arrived and I have sprayed about 10 gallons and the battery is still strong.
Date published: 2020-10-22
Rated 5 out of 5 by from Easy to use...!! Received this for Christmas. Been looking to spruce up our flower beds a bit and the first step was round-up everything and start from scratch. This sprayer was easy to use...add the solution, point and spray. Was able to spray an entire 250sq ft flower bed in minutes. Purchased the shoulder bag as well to help carry around. Lightweight and compact. Looking forward to using this throughout each season and keep the weeds at bay!
Date published: 2021-01-25
Rated 5 out of 5 by from great purchase I bough this for my wife. She has orchids, alot of them. every morning she has to spray the roots of them, Vanda's is the kind of Orchid and the roots are not in dirt, she sprays the roots with water and she has been using a pump up sprayer witch is alot of work for her. With this sprayer all she has to do is turn the button on and away she goes, she gets them sprayed in 1/4 of the time with little ease.
Date published: 2020-12-28
Rated 5 out of 5 by from Excellent Sprayer I bought my first sprayer about a month ago and really liked it. I used a cleaning agent to spray my vinyl siding on my house. The sprayer worked great! Absolutely no issues at all. My wife wanted her OWN sprayer for her garden. I bought her one today and she was extremely. I have at least a dozen other Ryobi tools and can't say enough about their quality. I give this sprayer a 5 star.
Date published: 2021-01-29
Rated 4 out of 5 by from Great for older folks with arthritis in our hands Bought this product a little over a year ago and its worked perfectly. I have bad arthritis in both of my hands and use a cart to get around the house, so this tool helps out with me not having to pump it all the time. The only thing wrong with it now is the wand broke off next to the handle and i can't find the replacement parts. If anyone has any advice i would appreciate it.
Date published: 2020-11-10
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