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STIHL SR 450

For both the distribution of liquid or solid insecticides, fertilizers, or herbicides, the low-emission, fuel-efficient STIHL SR 450 Backpack Sprayer has a larger, more powerful engine that provides a spray range 20% wider than previous models, taking 20% less time to spray the same area, depending on application. The SR 450 easily converts from misting to dusting applications without special tools or additional equipment, and air speed can be easily adjusted during use for greater application and less product waste. The SR 450 can also be used as a backpack blower for debris cleanup.


This product must be picked up in-store per STIHL's sales policies

STIHL SR 450 Features

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

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

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

STIHL SR 450 Specifications
WEIGHT WITHOUT LIQUID12.8 kg (28.2 lbs.)
DISPLACEMENT63.3 cc (3.86 cu. in.)
ENGINE POWER2.9 kW (3.9 bhp)
FUEL CAPACITY1700 cc (57.5 oz.)
CONTAINER CAPACITY14.0 L (3.7 gals.)
AIR VOLUMEWith Tubes: 920 m3/h (542 cfm)
AIR VELOCITY90 m/sec. (201 mph)
MAXIMUM SPRAY RANGEHorz.: 14.5 m (48 ft.)Vert.: 13.0 m (43 ft.)