18V ONE+™ 2 Gallon Chemical Sprayer

Model: #P2803A

4.7 | 80 Reviews
The RYOBI ONE+ Chemical Sprayer is the perfect union of portability and versatility. With its pump optimized for cordless efficiency, it sprays 40 Gal. per chLarge with no pumping required. An adjustable spray nozzle makes it the perfect tool for a variety of applications and the durable wand detaches from the handle for 1 or 2 handed use. Featuring a 2 Gal. tank and a cap that conveniently doubles as a mixing cup, the RYOBI ONE+™ Chemical Sprayer is completely efficient from prep to clean up. This product includes the tool only; battery and charger sold separately. Backed by a 3-year limited warranty.


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

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  • Power Source: 18V ONE+™ Battery
  • Tank Size: 2 Gallons
  • Pressure: 45 PSI
  • Tank Material: High Density Polyethylene
  • Hose Length: 54"
  • Nozzles: Adjustable
  • Warranty: 3 Year


  • 18V ONE+™ 2 Gallon Chemical Sprayer


18V ONE+™ 2 Gallon Chemical Sprayer
18V ONE+ 2 Gallon Chemical Sprayer is rated 4.7 out of 5 by 80.
Rated 5 out of 5 by from Super efficient tool I just had this delivered. I have numerous Ryobi 18 volt tools along with extra batteries and 6 pack chargers. I just used the jigsaw and drill just yesterday. I love all of them. I am almost 73 years old and I enjoy woodworking. I have a shop where I make things as gifts for friends. This sprayer I just used to put out roundup around my flower gardens. It wasn’t bulky and had a great spray pattern. It was easy to fill and clean. I love it along with my jigsaw, router, saw, sander, impact driver, glue gun, brad gun and battery chargers and blower. RYOBI Iis a great product line. Prices are great and the products last. Get the sprayer you won’t be disappointed. .
Date published: 2021-05-05
Rated 5 out of 5 by from Great Chemical Sprayer I used this the first time after purchase today to treat my 1/2 acre yard. It works as described and it has much even spray than the hand pump sprayers I own. It will be a nightmare if I used my hand pump for the entire yard treatment. I think the 2 gallon is the right size for an average household. I do not need to stop pumping anymore and can just keep walking until all chemicals depleted. Refill is OK and wishes the hole can be bigger. sometimes I got some chemical on my cloth due to some minor leaks from the spray gun tube go to the tank. It seems not well sealed when it is full while walking but it is acceptable.
Date published: 2021-04-04
Rated 5 out of 5 by from A lot for the money I have purchased several pump up sprayers and they just did not work very well as far as a stream pattern was concerned. So I bought the P2803a, loaded it up and went out to the fence line that was difficult to reach. This unit easily sprayed to the areas that i needed to cover. The unit is quiet, I like the lockable trigger and the measuring cup on the side is very useful. Instead of all cheap plastic on the spray wand it is metal with brass fittings. neat thing is that the handle can be left in the holder and still use the sprayer or remove the handle and use the tube. Really well thought out product
Date published: 2021-03-21
Rated 5 out of 5 by from No more pumping Wow I purchase this chemical sprayer a couple of weeks ago and it's the best. Cuts down the time it takes to complete a job easy to use love the measuring cup that is included and also the built in design for storing the handle when not in use. I has a stainless steel wand and brass tip great quality. Put this on your wish list this year.
Date published: 2020-11-12
Rated 5 out of 5 by from a real labor saver Replaces my 2 gal. hand pump sprayer...no contest! Produces an even, consistent spray pattern without repeated stops to pressurize a tank by hand pump. Enormously speeds up and eases the task. Great machine. I would like to see a screen added to the the 'replacement seals' package. This screen is at the tank end of the pick-up tube and will require clearing or cleaning to maintain sprayer performance. This maintenance requirement should be addressed in the Owner's Manual. This screen is about 3mm diameter and easily lost. Also, I really appreciate Ryobi's 18 volt +1 broad product line offings. Most manufacturers are busy making their most recent product obsolete while Ryobi is working to continue building on a solid product base. Well done and thank you.
Date published: 2020-10-03
Rated 5 out of 5 by from Excellent Customer Service I bought this 2 gal sprayer two months ago. It stopped working after 30 minutes using. I brought it back to store and left a review online. Ryobi customer service contacted me immediately, they asked me few questions, I told them I’d tried any possible ways to make it work again but I failed. They promised me a new one for free. The new one worked very well. I quickly finished my project with this sprayer. Based on their excellent customer service, I bought another Ryobi product, a $400 battery powered mover.
Date published: 2021-06-24
Rated 1 out of 5 by from Stopped working after 3 months We used this unit to spray our disinfectant solution on our mats after Taekwondo training. It was good while it worked, but it just stopped working yesterday after about 3-months. It sounds like the pump/motor is running but the suction is lost.
Date published: 2020-10-04
Rated 4 out of 5 by from When I ordered this sprayer, I assumed the pump motor would be activated by triggering the spray wand. Instead, the pump is running under pressure the whole time, even without the wand being triggered. The new sprayer works great right out of the box, but I have to wonder how long the pump or other components will last with this design. I have a very large arsenal of Ryobi tools built up over the years that I am very happy with. I hope after 3 or 4 years, I can feel the same about this sprayer.
Date published: 2020-09-23
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