Solo 425 4-Gallon Professional Piston Backpack Sprayer

4 out of 5 stars 1 Reviews | 2 Q&A

Solo 425 4-Gallon Professional Piston Backpack Sprayer

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Average Rating

4 out of 5 stars Rating: 4

1 Review | 2 Q&A

Product Overview

Solo 425 4-Gallon Professional Piston Backpack Sprayer is a high-quality backpack sprayer that is designed to make application of fertilizers, disinfectants, pesticides, herbicides and other formulation much easier. Its 4-gallon tank is constructed of high-density polyethylene with ultra-violet inhibitors to ensure durability and UV protection. It features a shut off valve, 4-feet high-pressured hose and a 28-inch wand to let you reach those hard-to-treat areas easily. It also comes with chemical-resistant Viton seals to ensure key areas will be secured and padded shoulder traps to allow you to carry your sprayers comfortably. It is also capable of producing wide pressure range for up to 90 psi with the help of its rod-activated piston pump, making it virtually possible to perform every spraying task efficiently. Its 4.25 in. opening allows you to clean and fill it easily.

Features and Specs

Sprayer Type Backpack sprayer
Tank Size (gal.) 4 Gallon
Material / Construction High-density polyethylene tank with ultra-violet inhibitors
Seal Type Viton
Hose Length (in.) 4 ft.
Wand Length (in.) 28 in.
Pressure (PSI) Up to 90 psi
Special Features Padded shoulder straps
Shipping Weight 10.99 lbs
Manufacturer Solo (Mfg. Number: 425)
5 stars   0
4 stars   1
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1 star   0
  • 4 of 5 Stars

    back pack sprayer

    By Scott on 08/30/2019

    The sprayer works great except for the top leaks around the appears the top is not perfectly round and the cap gasket must not make a good seal

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    5 of 5 people found this review helpful

Questions & Answers

Have a question about this product?
Will this Solo 425 hold up against bleach?

I'm looking fit a good sprayer to apply bleach to roofs affected by algae and moss would this be a good sprayer to use? If not could you recommend one? Thanks


It would not be recommended to use bleach in the Solo 425 4-Gallon Professional Piston Backpack Sprayer.  Instead you could use the Chapin Euro Bleach Backpack Sprayer 4 Gal. (61575) or Chapin Industrial Poly Bleach Sprayer 1 Gal. (20075) designed to hold up against this harsh chemical.

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2 of 2 people found this answer helpful

Is the Solo 425 4-Gallon Professional Piston Backpack Sprayer battery-powered?

No, the Solo 425 4 Gallon Professional Backpack Sprayer is a pump sprayer.  If you are looking for a battery-powered sprayer, you may want to consider the Solo 416 Battery Backpack Sprayer.  

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