Compare Prices Solo 425 4-Gallon Professional Piston Backpack Sprayer

Solo 425 4-Gallon Professional Piston Backpack SprayerBuy Solo 425 4-Gallon Professional Piston Backpack Sprayer

Solo 425 4-Gallon Professional Piston Backpack Sprayer Product Description:



  • High-performance piston pump for increased pressure capabilities
  • Extra large tank openings for easier filling and cleaning
  • 28-Inch unbreakable wand provides excellent reach
  • Chemical resistant seals provide outstanding resistance to harsh chemicals
  • Four-nozzle assortment for multiple spraying tasks

Product Description

4-Gallon professional backpack piston sprayer.

Customer Reviews

Most helpful customer reviews

40 of 41 people found the following review helpful.
4Solo 425: Nice sprayer. One fixable problem!
By shane
I bought the solo 425 for organic spraying of pests in my garden. It works great except for one small problem. The backpack straps that came with my solo had straight clips on them that fell off when the sprayer was full. A quick call to SOLO, informed me that the straight clips were crap and they sent me a new pair of redesigned straps right away. Great product great service from solo. I bought this model because a neighbor had one he had been using for 10 years!!! I hope mine lasts that long. Note: The 425 has a piston pump (for liquid additives), the 475 has a diaphragm pump for powdered and / or liquid additives. Make sure you get the one that you need. The only reason the pump did not get 5 stars was my strap problem.

15 of 15 people found the following review helpful.
4Gets the job done...
By Jeffrey Tucker
I use this sprayer for an orchid collection on my screened patio. I spray fertilizer, insecticides and fungicides with it. It is a huge step up from my old hand held pump sprayer. I would never go back. I like the fact that I can mix up to 4 gallons so I'm not constantly running out of product. It is incredibly easy to use. I'm 6' tall and pretty strong, I think a smaller person may have trouble getting a full sprayer on their back because it's heavy. Also the shoulder straps may be too wide apart for a smaller person. Having said that, I've been using it for about a year and I recommend it.

9 of 9 people found the following review helpful.
4Surprised
By xofderoo
Solo 425. The sprayer works great. The harness falls off my shoulders. I would have expected something to prevent this such as a chest strap. I read in the instruction manual that it came with a lumbar support. It didn't.Order id.; [...] (**P-1-E50D1**) B00002N6BW 720343425000

See all 21 customer reviews...


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