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4 Gallon Backpack Sprayer

Roundup 4 Gallon Backpack Sprayer

Price $79.99

The Roundup® 190327 Backpack Sprayers does the work of a piston or diaphragm backpack sprayer. The exclusive internal No Leak Pump keeps your back and clothing dry. The paddles keep liquids, powders, and water-soluble solutions mixed, in solution, and ready to spray. Also, the pump features Viton® seals that can be easily changed within minutes without tools (up to 7x faster than the leading competitor). The premium shut-off offers a comfort grip, lockable trigger to prevent hand fatigue, and a removable in-line filter to reduce clogging.

The Roundup® 190327 Backpack Sprayer is capable of spraying up to 150 PSI for those hard-to-reach areas. The included pressure regulator maintains a low, continuous 25 PSI (great for spraying herbicides and weed killers). The foldable pump handle reverses for left- or right-handed use, and the tank has a built-in carry handle with wand storage. With adjustable padded straps, waist belt and chest cinch strap, the backpack ensures comfort while you work. Multiple nozzles are included for ultimate versatility: poly adjustable nozzle (enables stream to cone patterns), wide flat fan nozzle (red, 0.25 GPM, angled at 70°), narrow flat fan nozzle (yellow, 0.15 GPM, angled at 30°), and foaming nozzle. Also accepts TeeJet nozzles.

  • "No Leak" internal pump
  • Free spray optimizer - sprays at a continuous 25 PSI
  • Adjustable padded straps and waist belt
  • Shutoff with comfort grip and inline filter
  • Built in lumbar support
  • 3 nozzle system
  • Wand Length 18”
  • Hose length roughly 4 ft long
  • Viton seals and gaskets
  • Rustproof
  • Reinforced Poly Hose
  • Poly Tank
  • 2 Flat Fan Brass Adjustable Nozzles
  • Adjustable Spray Pattern
  • Manufacture Warranty 5 years

Theisen's standard returns and exchanges policy: All returns must be completed within 90 days of purchase unless otherwise noted. All items must be in new, unused condition and contain all original packaging and accessories. Some exclusions apply. For more information on our policy or to learn how to return an item click here.

Proposition 65 Warnings! 

Note: These warnings do not apply to food products.

 WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate, which are known to the State of California to cause cancer and birth defects or other reproductive harm.

 WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov.