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New! New! Solo Professional 4-Gallon Backpack Sprayer with Diaphragm Pump

  • 4 Stars
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$ 147.63
> 5
$ 144.22
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Weight: 11.00 lbs

Built for comfort. Built for convenience. Built to last.

Solo loads their Professional Backpack Diaphragm Pump Sprayers with everything you need in a sprayer. These sprayers feature 4-gallon high-density polyethylene tanks. A 21-inch long, chemical-resistant stainless-steel wand replaces the standard polypropylene wand. This wand connects to the tank via a 48-inch nylon-reinforced pressure hose. Solo uses Viton® seals and O-rings through the entire unit instead of just in critical locations. They also include an assortment of four nozzles.This Solo sprayer features a diaphragm pump and an adjustable pressure regulator. A commercial shut-off valve reduces the risk of chemical spills and reduces user fatigue. The pump handle folds away, and a convenient carry handle makes the entire unit easy to transport. The deluxe shoulder saver harness makes this sprayer as comfortable as it is effective.Solo makes this sprayer's diaphragm pump using top quality materials. This pump resists harsh chemicals, providing you with longer service life. The diaphragm allows small abrasive particles to pass through without damaging the assembly. This ability makes this sprayer ideal for use with chemicals in wettable powder form, liquid formulations, and bleach solutions. A large filling aperture makes filling faster and reduces the likelihood of spillage. The reliable diaphragm pump produces a pressure range of up to 60 psi while providing a smooth operation.A low number of wearing parts ensures a long service life with minimal maintenance. Solo?s ergonomic design contours to your back providing comfort during even extended jobs. Use a Solo Professional Backpack Sprayer and make spraying less of a chore!


  • Pump style: Diaphragm
  • Maximum pressure (psi): 60
  • Tank capacity (gallons): 4
  • Tank material: High-density polyethylene (HDPE)
  • Wand length (inches): 21
  • Wand material: Stainless-steel
  • Hose length (inches): 48

Product Features

  • High-density polyethylene tank
  • Stainless-steel wand
  • Nylon-reinforced pressure hose
  • Diaphragm pump
  • Commercial shut-off valve
  • Adjustable pressure regulator
  • Includes four nozzles
  • Viton® seals and O-rings
  • Deluxe shoulder-saver harness
  • Foldaway pump handle
  • Carry handle

Review Summary (Based on 1 Reviews)

4 Stars

Solo 4 gallon back pack garden sprayer. wrote

The Solo back pack sprayer is an excellent sprayer. Unfortunately, if you have back problems like I do, this is not the sprayer you'll want to use. The sprayer holds up to 4 gallons of spray material, and If you fill it up with 4 gallons you are putting on 33.32 pounds on your back, not including the weight of the sprayer itself. Altogether, with the weight of the sprayer and the spray material you're probably putting on around 40+ total pounds total on your back. Of course, you can always fill with less material, but what would be the purpose if you can buy a smaller sprayer for less money.

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