Yes, I use it for that all the time. It pays for itself in one season.
STIHL Gas-Powered Professional-Grade Disinfectant Backpack Sprayer / Fogger, 3.7-Gallon Capacity, Model# SR 450

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Shipping:
Not availableIn Store Only:
- Easy toolless conversion from liquid (misting) to granular (dusting) applications
- Multi-function control handle
- Anti-vibration system
- Adjustable support harness
- Product feed and air speed controls
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) STIHL Professional-Grade Disinfectant Backpack Sprayer / Fogger, 3.7-Gallon Capacity
Features + Benefits
- Easy toolless conversion from liquid (misting) to granular (dusting) applications
- Multi-function control handle
- Anti-vibration system
- Adjustable support harness
- Product feed and air speed controls
Key Specs
| Attribute | Specification |
|---|---|
item# | 99136 |
Brand | Stihl |
Manufacturer's Warranty | 24 months parts/24months labor |
| Attribute | Specification |
|---|---|
Ship Weight | 28.2 LB |
Tank Size | 3.7 Gal |
Product Weight | 28.2 lb |
Reviews
Questions & Answers
Questions
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Anonymous· 5 years ago
can this blower be used for mosquito sprays in hedges and yards
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Steve Koz· 5 years ago
Helpful?
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ProductExpert38· 5 years ago
This backpack sprayer is suitable for applying mosquito control to yards and hedges.
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· 5 years ago
Does this unit spray droplets as required on some liquid products for turf?
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Steve Koz· 5 years ago
Yes, from extremely fine mist to more coarse droplets.
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ProductExpert11· 5 years ago
The mist blower is also fitted with a quick 2 in 1 conversion mechanism for dusting and spraying granules. Easy and precise dust metering.
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· 2 years ago
Can this be used to spray fungicides in trees?
1 answer-
ProductExpert23· 2 years ago
Yes, the Stihl Gas-Powered Professional-Grade Disinfectant Backpack Sprayer/Fogger (Model SR 450) can be used to spray fungicides in trees. This sprayer is designed for a variety of applications, including distributing liquid insecticides, fungicides, and fertilizers.
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· 4 years ago
how far does it spray distance in feet?
1 answer-
ProductExpert11· 4 years ago
The maximum spray range is 48 feet.
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· 6 years ago
Can I use this as a standard leaf blower as well?
1 answer-
ProductExpert6· 6 years ago
The backpack sprayer can also be used a standard leaf blower.
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· 6 years ago
Rated cfm
What cfm is unit rated? Thank you in advance.
1 answer-
ProductExpert18· 6 years ago
This Stihl SR 450 backpack sprayer/fogger has a maximum air flow rate of 765 cfm without the blower tube and 542 cfm with the nozzle.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
24 months parts/24months labor
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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$859.99Shipping:
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- $79.99
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- $149.99
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$19.99 Same DayStore Pickup:
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Estimated to ship 08/21/26
$19.99 Same DayStore Pickup:
1 in stock at Fredericksburg VA - Pickup in under 1 hr
Specifications
3.7 Gal
4 Gal
4.75 Gal
4 Gal
28.2 lb
10.5000 lb
11.2 lb
11.0000 lb
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0.5 GPM
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0.32 GPM
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60 PSI
40 PSI
40 PSI
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Nitrile
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Viton
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25 ft
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24 ft
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23 ft
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Adjustable
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Stream, Cone, Fan, Foam
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20 in
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21 in
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Piston
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Diaphragm
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48 in
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50 in
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14.0 x 8.5 x 22.0 in
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14.0 x 9.0 x 22.5 in
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6 ft
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Poly
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6
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3 hr




