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SR 450

A powerful backpack sprayer/duster that easily converts from liquid to granular applications.

SR 450
Rated 4.2 out of 5 by 6 reviewers.
Rated 4 out of 5 by Gets the job done We use four of these on a daily basis during mosquito season & they work as hard as we do. Its a bit heavy ( about 54lbs with 3 gal in tank ) & awkward, but you can do the same job with 3 gallons of water as you could with a skip sprayer & 15-20 gallons of water. They always run great with little maintenance, we use only the Stihl Ultra fully synthetic oil as the exhaust screens will clog if you use traditional two stroke oil. The straps are very thin, for the price they should be as nice as the straps on the BR600 blower. As of this posting you cannot buy upgraded straps. Overall its a hardworking machine that gets the job done with less water, less chemical, and in less time making us more profitable. October 14, 2013
Rated 5 out of 5 by This product is great to use. Makes money I bought this mist blower to add the service for my mosquito control business. Not only did it help the control of the mosquitos but it increased my business. Very easy to operate. A little heavy at first until the tank gets below 21/2 gallons. Love using it because every time I start the unit I know I am making money. Paid for itself in two weeks. August 23, 2013
Rated 3 out of 5 by Meh... As a company I own 6 of these. I like them for the fact that I'm a bigger guy and that they are easy to use for a first time user. They are awkward, cumbersome, and a bit on the heavy side. They do put out alot of power and get the job done right. I'm just sad STIHL stopped making the 420 model. I feel that was a better version. The 450 seems to always be having some mechanical issue. Overall it is a decent enough blower/sprayer. I just think STIHL needs to up their game for a better model. The only reason I do recomend this blower/sprayer is because I have tried other ones and this is the better of the options out there. August 20, 2013
Rated 5 out of 5 by EXCELLENT PRODUCT, EASY TO USE, MUCH MORE FLEXIBILITY After pulling over 300 feet of hose in the heat of summer with full PPE (respirator, long sleeves, long pants, heavy rubber gloves) I can only say it was a joy to use the Stihl. Yes the pack is a bit heavy when 1st loaded. After being a US Marine for 10 years, a pack s a pack. My suggestion would be perhaps dont fill so full if you can avoid it. I AM GOING TO PURCHASE A 2ND UNIT IN THE NEXT WEEK. June 17, 2013
Rated 4 out of 5 by easy to use, heavy to wear. bought the SR 450 and put it to the test right away by puting 60 gallons through it at a campground. first impression was that it was very heavy and awkward when full. The Stanley manual pump backpack sprayer that i own has more padding and a chest strap. I struggled with the shoulder straps digging into my shoulders. The power was good and the flow takes some getting used to. Easy to over apply if not careful. ready to find new straps and keep on spraying. April 28, 2013
Rated 4 out of 5 by Great Product Amazing product, Would recommened it to anyone. There are only two things I don't like. The weight of the unit when its full of chemical's, and that you can't fully shut the air flow off to the blower when not in use. March 17, 2013
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