STIHL SR450 63.3cc Commercial Backpack Sprayer

The STIHL SR 450 is a professional-grade sprayer that covers all the bases. Its low-emission, fuel-efficient engine delivers a 20% greater spray range when compared to previous models. Ideal for distributing liquid or solid compounds, this backpack sprayer/duster converts from misting to dusting applications without any special tools or additional equipment. It's easy to use and provides excellent control over product feed and air speed. And to top it all off, the sprayer also quickly converts to a powerful leaf blower for fast debris cleanup.

Features    Specs


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Adjustable Support Harness

STIHL backpack blowers and sprayers are equipped with an adjustable support harness that distributes weight evenly across the shoulders and back, reducing user fatigue.

Anti-Vibration System

The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.

Multi-Function Control Handle

Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operatorĘs hand never has to leave the handle.


Air Velocity

201 MPH

Air Volume

542 CFM with tubes

Container Capacity

3.7 gallons


Professional Use

Engine Displacement

63.3 cc

Engine Power

3.9 bhp

Fuel Capacity

57.5 oz.


28.2 lbs.