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Chapin ProSeries Backpack Poly Sprayer - 4 gal

SKU: 361800
UPC: 023883618001
$92.12
  • Durable 4-gallon translucent poly tank with large 5.25-inch opening
  • 3-stage filtration system to minimize clogs and maintain steady flow
  • Includes three spray nozzles: brass adjustable, poly adjustable, and poly fan tip
  • Padded shoulder straps and cushioned shut-off for extended comfort

The Chapin Pro Series 4-Gallon Backpack Poly Sprayer is engineered for professionals and dedicated homeowners who require consistent, high-volume application for lawn, garden, and landscape treatments. Built with a heavy-duty poly tank and chemical‑resistant seals, it handles fertilizers, pesticides, herbicides, and general cleaning solutions with ease. A wide 5.25-inch opening simplifies filling and cleanup, while the 3-stage filtration system helps prevent debris-related spraying interruptions. With multiple interchangeable nozzles, a reinforced hose, extended wand, and padded straps, this sprayer delivers reliable performance, versatility, and user comfort for large-scale outdoor applications.


Tank Capacity & Construction

Features a 4-gallon translucent poly tank that resists chemicals and rust, allowing quick viewing of fluid levels during use.

Filling & Maintenance

The extra-wide 5.25-inch opening includes a filter cap to catch debris during filling, making cleaning and refilling more efficient.

Filtration System

Equipped with a 3-stage filtration system—filter basket at the cap, in-tank filter, and shut-off filter—to reduce clogging and maintain smooth spray output.

Nozzle Options

Includes brass adjustable, poly adjustable, and poly fan-tip nozzles to switch between coarse stream, fine mist, cone spray, or fan coverage.

Wand & Hose Assembly

Comes with a 20-inch poly extension wand and a 48-inch reinforced hose for extended reach around landscaping and garden beds.

Comfort & Ergonomics

Padded shoulder straps reduce fatigue during long spraying sessions, while the cushioned shut-off and lock-on feature enhance comfort.

Pump Design & Control

Positional pump handle can be switched for left- or right-hand operation, offering flexibility and improved usability.

Chemical Compatibility

Chemical-resistant elastomer seals support use with fertilizers, pest control solutions, weed killers, and general-purpose cleaning agents.

Use Cases

Ideal for professional landscaping, large lawns, pest control treatments, weed management, and agricultural spraying tasks.

Specifications
  • Tank size: 4 gal
  • Tank mouth opening: 4"
  • Tank construction: Poly
  • Pump type: Piston
  • Hose length: 48"
  • Hose material: Clear reinforced
  • Shut-off material: Poly cushion-grip
  • Shoulder strap: Padded shoulder straps
  • Spray/flow rate (GPM): 0.4 - 0.5 GPM
  • Nozzle(S): Adjustable brass cone, poly-fan, poly-cone
  • Filters: 3-stage
  • Frame: Powder-coated steel
  • Handle: Right or left mount
  • Extension wand material: Poly
  • Operating pressure: 40-60 PSI
  • Maximum spray stream vertical: 23'
  • Maximum spray stream horizontal: 25'
  • Length: 14-3/4"
  • Width: 9"
  • Height: 21-7/8"
  • Weight: 10.5 lb
  • Warranty: 2 year limited warranty

Installation Manual.pdf

WARNING: Prop65 -This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. For more information go to P65 Warnings

 
  • Durable 4-gallon translucent poly tank with large 5.25-inch opening
  • 3-stage filtration system to minimize clogs and maintain steady flow
  • Includes three spray nozzles: brass adjustable, poly adjustable, and poly fan tip
  • Padded shoulder straps and cushioned shut-off for extended comfort

The Chapin Pro Series 4-Gallon Backpack Poly Sprayer is engineered for professionals and dedicated homeowners who require consistent, high-volume application for lawn, garden, and landscape treatments. Built with a heavy-duty poly tank and chemical‑resistant seals, it handles fertilizers, pesticides, herbicides, and general cleaning solutions with ease. A wide 5.25-inch opening simplifies filling and cleanup, while the 3-stage filtration system helps prevent debris-related spraying interruptions. With multiple interchangeable nozzles, a reinforced hose, extended wand, and padded straps, this sprayer delivers reliable performance, versatility, and user comfort for large-scale outdoor applications.


Tank Capacity & Construction

Features a 4-gallon translucent poly tank that resists chemicals and rust, allowing quick viewing of fluid levels during use.

Filling & Maintenance

The extra-wide 5.25-inch opening includes a filter cap to catch debris during filling, making cleaning and refilling more efficient.

Filtration System

Equipped with a 3-stage filtration system—filter basket at the cap, in-tank filter, and shut-off filter—to reduce clogging and maintain smooth spray output.

Nozzle Options

Includes brass adjustable, poly adjustable, and poly fan-tip nozzles to switch between coarse stream, fine mist, cone spray, or fan coverage.

Wand & Hose Assembly

Comes with a 20-inch poly extension wand and a 48-inch reinforced hose for extended reach around landscaping and garden beds.

Comfort & Ergonomics

Padded shoulder straps reduce fatigue during long spraying sessions, while the cushioned shut-off and lock-on feature enhance comfort.

Pump Design & Control

Positional pump handle can be switched for left- or right-hand operation, offering flexibility and improved usability.

Chemical Compatibility

Chemical-resistant elastomer seals support use with fertilizers, pest control solutions, weed killers, and general-purpose cleaning agents.

Use Cases

Ideal for professional landscaping, large lawns, pest control treatments, weed management, and agricultural spraying tasks.

Specifications
  • Tank size: 4 gal
  • Tank mouth opening: 4"
  • Tank construction: Poly
  • Pump type: Piston
  • Hose length: 48"
  • Hose material: Clear reinforced
  • Shut-off material: Poly cushion-grip
  • Shoulder strap: Padded shoulder straps
  • Spray/flow rate (GPM): 0.4 - 0.5 GPM
  • Nozzle(S): Adjustable brass cone, poly-fan, poly-cone
  • Filters: 3-stage
  • Frame: Powder-coated steel
  • Handle: Right or left mount
  • Extension wand material: Poly
  • Operating pressure: 40-60 PSI
  • Maximum spray stream vertical: 23'
  • Maximum spray stream horizontal: 25'
  • Length: 14-3/4"
  • Width: 9"
  • Height: 21-7/8"
  • Weight: 10.5 lb
  • Warranty: 2 year limited warranty

Installation Manual.pdf

WARNING: Prop65 -This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. For more information go to P65 Warnings