18V ONE+™ 1 Gallon Chemical Sprayer Replacement Tank

Model: #AC1GAL

4.4 | 11 Reviews
The RYOBI 1 Gallon Chemical Sprayer Tank is compatible with both the RYOBI 18V ONE+™ 1 Gallon and 2 Gallon Chemical Sprayers. Mix your fungicide, herbicides, or pesticides into their own designated tank so you can store your chemicals separately when not in use. Equipped with a cap that doubles as a mixing cup, this spare tank accessory is built for convenience from prep to clean up. Simply attach this tank to your existing RYOBI 18V ONE+™ 1 Gallon or 2 Gallon Chemical Sprayer, start and spray without manual pumping.


This is a consumable item and therefore is not covered by a warranty. It is warranted against defective parts and labor only and not from misuse or deterioration of the product through normal wear and tear.

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  • Tank Size: 1 Gallon
  • Tank Material: High Density Polyethylene
  • Weight: 1.5 lbs.


  • 18V ONE+™ 1 Gallon Chemical Sprayer Replacement Tank
  • Measuring Cap
  • Operator's Manual


18V ONE+™ 1 Gallon Chemical Sprayer Replacement Tank
18V ONE+ 1 Gallon Chemical Sprayer Replacement Tank is rated 4.4 out of 5 by 11.
Rated 3 out of 5 by from Unclear Instructions I just bought this sprayer and tank. I haven't used it yet. The instructions say not to use any liquid that is alkali or acid. You should specify what liquids that should NOT be used. I bought this to spray bleach on my pool deck, and bought an additional tank for spraying round-up weed killer. I have no idea if these liquids will harm the sprayer.
Date published: 2021-10-26
Rated 5 out of 5 by from It's great to have a second tank I can mix enough to do the whole job and just switch tanks when the first one is empty. No need to stop to mix more just swap the tank in seconds and continue spraying.
Date published: 2021-01-18
Rated 5 out of 5 by from Great addition to my sprayer! Bought this to have a second tank for my sprayer. Works great. Looking to order a third.
Date published: 2020-10-05
Rated 5 out of 5 by from Extra tank Nice to have an extra tank to have cleaning solution to do final cleaning of the system
Date published: 2020-09-21
Rated 4 out of 5 by from Very convenient I purchased a 1 gallon sprayer because my son-in-law got one for my daughter. Just figured I would get an extra tank so I could switch them out quickly
Date published: 2020-09-01
Rated 1 out of 5 by from Engineers pov Cap broken after 2 months of use. Plastic cup is defective. No metal alternatives exist sadly.
Date published: 2020-06-30
Rated 5 out of 5 by from Easy chemical tank trade out! I bought the sprayer kit that came with a second tank so that I could easily trade out bug spray and weed spray, quick and easy!
Date published: 2020-06-08
Rated 5 out of 5 by from Works beautifully and lightweight! I bought this for my property/small farm because I need to take care of fence lines, a well, a large custom pavers area and more. As a woman, constantly having to pump and carry a heavy tank sprayer was not working for me, so this was an ideal alternative - even though the tank is only one gallon. It operates and carries with ease and I was able to cover more weed spraying in less than an hour than I could have in two days by breaking the job up. Love it - easy to fill, assemble, operate and is made of quality materials. The metal wand with brass fittings is terrific - my old one was plastic and it didn't hold up in the long run. Well worth buying the kit with the charger and battery (which can be used with other great Ryobi tools I am looking into investing in).
Date published: 2020-06-04
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