18V ONE+™ 1 Gallon Chemical Sprayer

Model: #P2800A

4.6 | 396 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 225 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 395.
Rated 5 out of 5 by from sprayer one of the best lithium battery sprayer I have ever owned and simple, safe and easy to assemble!!!!
Date published: 2023-10-22
Rated 4 out of 5 by from Good except for rubber pump valve Works good for the price, unfortunately one small bad choice in the design material keeps causing failure after some use with certain chemicals and acidic fluids (i.e. vinegar) . The small piece of rubber is not chemical resistant it's within the pump assembly acting as two valves swells to the point it prevents fluid from pumping out. It's a simple 15 min fix to open it up and trim the rubber a bit and it works fine till it swells up again. I eventually just replaced it with one I printed up with what should be a more chemically resistant material TPE 83A. I uploaded to thingaverse incase anybody is in need.
Date published: 2023-10-07
Rated 5 out of 5 by from Fantastic Sprayer This sprayer is fantastic. Makes spraying weeds and bugs enjoyable. Switching out the different chemical tanks is so easy and quick
Date published: 2023-10-02
Rated 4 out of 5 by from Does the job! Got this to help with weed control in my new lawn - works as advertised. Wish it had a little more power to create a more consistent spray but otherwise this thing took care of my entire 1/2 acre in one charge (over multiple fill-ups!)
Date published: 2023-09-30
Rated 5 out of 5 by from Great tool, saves money and helps with efficiency! I bought this a year or so ago, and I use it a lot. It's great to be able to mix my own from concentrate and then use this instead of paying more for the built-in battery operated wand on the pesticide and herbicide at Home Depot. Saves time and money and makes it kinda fun actually!
Date published: 2023-09-18
Rated 2 out of 5 by from Mixed feelings about sprayer. Bought the one gallon sprayer a week ago, it started of great but then quit working, dribbling out the nozzle. Took it back to exchange for new one. So hopefully it last longer and the other one was just a flute bad one.
Date published: 2023-09-11
Rated 4 out of 5 by from The ability to change batteries is the best thing. I have a ton of Ryobi 18v tools. I got this sprayer to replace a SunJoe one that died after a year. The metal spray wand is a plus and the adjustable spray works pretty well. The spray distance, however, is not that great. If you are spraying in a breeze, you have to be close to your target and you will get spray on you. I found it interesting that the pump motor ran continuously, even when I wasn't spraying. Apparently the bucket doesn't pressurize, which explains the lack of spray distance. Ryobi claims up to 30 spray operations from a single charge, but I doubt that with the small battery that is included. It does do the job, though. Even if it is a bit pricey.
Date published: 2023-09-04
Rated 3 out of 5 by from not good switch failing after about 5 uses pump not very strong
Date published: 2023-09-04
Rated 5 out of 5 by from Love this sprayer I bought this about a month ago and love it. No pumping. I would buy again.
Date published: 2023-09-03
Rated 5 out of 5 by from Great portability Bought to spray a dock - needed it to go on fast and even.
Date published: 2023-09-01
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