STIHL SG 20 Manual Backpack Sprayer 4247 019 4902 | 4.75 Gallon

Product Number: 4247 019 4902

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Product Brand: Stihl
Product Type: Parts

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STIHL SG 20 Manual Backpack Sprayer - 4247 019 4902

The STIHL SG 20 Manual Backpack Sprayer is designed for precise, controlled application of liquids such as pesticides, herbicides, and other approved spraying compounds. With a 4.75 gallon translucent tank, comfortable backpack-style harness, and consistent manual pressure system, the SG 20 is built for property maintenance, small tree farms, vineyards, landscaping, and professional outdoor work.

When handling compounds like pesticides and herbicides, precision and control are essential. The STIHL SG 20 is designed with a separate pressurized fluid reservoir, helping maintain consistent working pressure even during refills. Its lightweight design and adjustable support harness help reduce fatigue during extended use.

This sprayer is commonly searched as STIHL SG 20, STIHL SG20 sprayer, STIHL 4247 019 4902, STIHL backpack sprayer, manual backpack sprayer, STIHL herbicide sprayer, and STIHL pesticide sprayer.


Product Details

Brand STIHL
Model SG 20
MFG Part Number 4247 019 4902
Product Type Manual Backpack Sprayer
Application Sprayer
Tank Capacity 4.75 gallons
Working Pressure 40 PSI ± 10%
Assembled Weight 12.2 lbs
Nozzle Type Non-adjustable hollow cone nozzle
Spray Settings Adjustable mist or spray settings
Tank Style Translucent tank for fluid visibility
Start Type Manual
Color White
Country of Origin China
Package Contents Manual backpack sprayer
Package Dimensions 12" x 12" x 12"
Condition New

Key Features

  • Genuine STIHL SG 20 manual backpack sprayer
  • STIHL part number 4247 019 4902
  • 4.75 gallon tank capacity
  • Designed for controlled application of approved liquid compounds
  • Great for pesticides, herbicides, property maintenance, small tree farms, and vineyards
  • Separate pressurized fluid reservoir helps provide consistent working pressure
  • Working pressure rated at 40 PSI ± 10%
  • Translucent tank makes it easier to monitor fluid level
  • Adjustable mist or spray settings
  • Non-adjustable hollow cone nozzle
  • Adjustable backpack support harness helps distribute weight across the shoulders and back
  • Lightweight design helps reduce fatigue during longer spraying jobs

Designed For

  • Pesticide application where approved
  • Herbicide application where approved
  • Small tree farms
  • Vineyards
  • Landscape maintenance
  • Property maintenance
  • Farm, acreage, and outdoor spraying tasks

Why Choose the STIHL SG 20?

The STIHL SG 20 backpack sprayer is built for users who need control, comfort, and consistent spraying performance. The translucent tank helps you keep track of liquid level, while the backpack harness helps spread weight evenly across the shoulders and back. For spraying jobs that take time, the SG 20 helps make the work more manageable.

Whether maintaining property, treating fence lines, working around small tree farms, or caring for vineyard rows, the SG 20 is a practical manual sprayer for users who need dependable STIHL equipment.


Important Use and Safety Notes

Always read and follow the STIHL instruction manual and the chemical manufacturer’s label before using this sprayer. Chemical handling can be hazardous if the wrong product, mixture, pressure, nozzle, or protective equipment is used.

  • Use only approved liquids recommended for your sprayer and application
  • Wear proper personal protective equipment based on the chemical label
  • Do not use with products not approved for manual sprayers
  • Do not spray near people, pets, food, open water, or sensitive areas unless the chemical label allows it
  • Rinse and clean the sprayer according to the manual after use
  • Do not store chemicals in the sprayer tank
  • Follow all local, state, and federal regulations for pesticide and herbicide use

Important Ordering Notes

  • This listing is for the STIHL SG 20 Manual Backpack Sprayer
  • STIHL part number: 4247 019 4902
  • Package contents: manual backpack sprayer
  • Confirm this sprayer meets your intended chemical application needs before ordering
  • The appearance and actual product characteristics may differ slightly from illustrations or sample photos

Part Number / Search Terms

  • STIHL SG 20
  • STIHL SG20
  • STIHL 4247 019 4902
  • STIHL 42470194902
  • STIHL SG 20 backpack sprayer
  • STIHL manual backpack sprayer
  • STIHL pesticide sprayer
  • STIHL herbicide sprayer
  • STIHL 4.75 gallon sprayer
  • STIHL sprayer 4.75 gal
  • STIHL garden sprayer
  • STIHL landscape sprayer
  • STIHL vineyard sprayer
  • STIHL tree farm sprayer
  • Manual backpack sprayer
  • Backpack sprayer for herbicide
  • Backpack sprayer for pesticide

Frequently Asked Questions

What is the STIHL SG 20 used for?

The STIHL SG 20 is a manual backpack sprayer used for applying approved liquids such as pesticides, herbicides, and other spraying compounds in property maintenance, landscaping, small tree farm, and vineyard applications.

What is the STIHL part number for the SG 20?

The supplied manufacturer part number is 4247 019 4902.

How large is the tank on the STIHL SG 20?

The supplied tank capacity is 4.75 gallons.

What is the working pressure?

The supplied working pressure is 40 PSI ± 10%.

Is the STIHL SG 20 comfortable to carry?

The SG 20 includes an adjustable backpack support harness designed to distribute weight across the shoulders and back, helping reduce fatigue during longer spraying jobs.

Can I use any chemical in this sprayer?

No. Always follow the STIHL instruction manual and the chemical manufacturer’s label. Use only approved liquids and wear the required protective equipment for the product being applied.


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