The SR 430 has a dry weight of 26.9 lbs and a maximum operating weight of 60.6 lbs when fueled and filled.
Free Gift Card Details
$100 Order
$250 Order
$500 Order
$1000 Order
- The promotion will be automatically applied on the Shopping Cart page.
- To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
- Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
- E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
- Free e-gift cards expire 11/01/26.
- Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
- Valid online and in participating retail stores.
- Limited-time offer. Subject to change without notice.
Stihl Gas-Powered High-Capacity Disinfectant Backpack Sprayer / Fogger, 3.7-Gallon Capacity, 63.3cc, Model# SR 430

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
Shipping:
Not availableIn Store Only:
Sold only in stores - 3 in stock at Fredericksburg VA
- 48ft. max. horizontal spray range; 43ft. max. vertical spray range
- High-performance pressure pump provides a constant flow of product with no loss of pressure, regardless of the spray angle
- Pump continuously mixes and agitates the tank contents while the engine is running, delivering a more consistent application of product
- Multi-function control handle offers easy access to all of the controls without the operator's hand ever having to leave the handle
- Anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
This item may be purchased at select Northern Tool stores; not available for online order at NorthernTool.com.
What's Included
- (1) High-capacity disinfectant backpack sprayer
Downloads
Features + Benefits
- 48ft. max. horizontal spray range; 43ft. max. vertical spray range
- High-performance pressure pump provides a constant flow of product with no loss of pressure, regardless of the spray angle
- Pump continuously mixes and agitates the tank contents while the engine is running, delivering a more consistent application of product
- Multi-function control handle offers easy access to all of the controls without the operator's hand ever having to leave the handle
- Anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience
- Adjustable range and rate of spray to match the needs of the area
- Comfortable, ergonomic design with adjustable support harness to distribute weight evenly across the shoulders and back, reducing user fatigue
- Soft rubber grips are gentle on the hands
- Dependable, high-quality components
Key Specs
| Attribute | Specification |
|---|---|
item# | 63964 |
Brand | Stihl |
Manufacturer's Warranty | 2 year limited warranty |
| Attribute | Specification |
|---|---|
Ship Weight | 32.12 LB |
Product Weight | 27.3 lb |
Reviews
Questions & Answers
Questions
-
· 4 months ago
How heavy is this mist blower’s
1 answer-
ProductExpert29· 4 months ago
Helpful?
-
-
· 11 months ago
What size micron droplets are dispersed?
1 answer-
ProductExpert6· 11 months ago
The droplet size is adjustable from 50 to 100 microns for this backpack sprayer/fogger.
Helpful?
-
-
· 6 years ago
When running the fogger inside does it leave a gas smell?
1 answer-
ProductExpert13· 6 years ago
This Stihl disinfectant backpack sprayer / fogger is designed for outdoor use only.
Helpful?
-
-
· 6 years ago
Interior use
Can this be used inside large warehouse facility?
1 answer-
ProductExpert18· 6 years ago
This Stihl backpack sprayer/fogger is recommended for outdoor use only.
Helpful?
-
Warranty
Manufacturer's Warranty
2 year limited warranty
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.
Compare with Most Popular in Backpack Sprayers
See All Backpack Sprayers
See All Stihl Backpack Sprayers
Currently Viewing This Product
$749.99Shipping:
Not availableIn Store Only:
Sold only in stores - 3 in stock at Fredericksburg VA
Item # 89707
$109.99Shipping:
Backordered: Order now to reserve yours -
Estimated to ship 07/23/26Store Pickup:
Not available - online only
- $89.99
Shipping:
Factory shippedStore Pickup:
Not available - online only
- $199.99
Shipping:
Backordered: Order now to reserve yours -
Estimated to ship 08/21/26
$19.99 Same DayStore Pickup:
1 in stock at Fredericksburg VA - Pickup in under 1 hr
Specifications
27.3 lb
11.3500 lb
lb
11.0000 lb
-
4 Gal
4 Gal
4 Gal
-
0.25 GPM
-
0.32 GPM
-
150 PSI
90 PSI
40 PSI
-
Viton
Viton
Viton
-
22 ft
25 ft
24 ft
-
Variable
4 ft
6 ft
-
Flat Fan, Foaming Fan, Stream/cone
Multiple
Stream, Cone, Fan, Foam
-
21 in
20 in
21 in
-
Internal Piston
Piston
Diaphragm
-
50 in
48 in
50 in
-
15.0 x 8.75 x 22.25 in
14.5 x 9.25 x 20.0 in
14.0 x 9.0 x 22.5 in
-
-
-
Poly
-
-
-
6
-
-
-
3 hr



