Solo 451 Mist Blower


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4 out of 5 stars Rating: 4.1

22 Reviews | 31 Q&A



{ $699.99
  Size/Description Price/Ea. Qty  
Solo 451 Mist Blower mist blower (backpack) $699.99
Total Price: $0.00

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Availability: Normally ships in 1 business day.
For large order quotes, please call us at 1-866-581-7378.

Solo 451 Mist Blower

The Solo 451 is brand new and replaces the older Solo 450 model.

This motorized mist blower features a 2-cycle, 66.5cc, 4.3HP low-emission Solo engine and fan system. Also featured on the Solo 451 is an ergonomic carrying frame and quick-release straps. The polyethylene tank with UV inhibitors has a capacity of 3.4 gallons. A 4-position liquid dosage control permits you to have a selectable output from 0.12 to 0.89 GPM.

You can use this mist blower in nurseries, orchards, vineyards, your home, or for mosquito control.

  • Equipped with 2-cycle, 66.5cc, 4.3HP Solo engine and fan system
  • Ergonomic carrying frame and quick-release padded straps
  • 3.4 gallon tank capacity
  • 4-position liquid dosage control allows selectable output from 0.12 to 0.89 GPM
  • Misting range is 40' horizontal and 35' vertical for hard-to-reach spraying areas


Product Documents

How to Assemble the Solo 451 Backpack Mist Blower:

How to Use the Solo 451 Backpack Mist Blower:

The main difference between the old 450 and the newer 451 model is the larger motor, the Solo 451 has a 66.5cc motor instead of the 53cc on the older 450.

Replacement parts that are available:

Solo Screw (#0018421)

Solo Screw M5X20 (#0018363)

Solo Ignition Coil Complete (#2300204)

Solo Exhaust Gasket (#2061103)

Solo Muffler (#2500739)


Rating Snapshot

5 stars   12
4 stars   6
3 stars   1
2 stars   0
1 star   3

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Average Customer Rating
4 out of 5 stars (22)

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Most Helpful Customer Reviews
  • 39 of 40 people found this review helpful:

    5 of 5 stars  Solo 451 Mosquito Fogger/Mist blower
    By Steve in Dowagiac, Michigan on 04/17/2012
    Verified Purchase

    Awesome machine!! Well worth the money if you live in an area where mosquitos make enjoying the pool or hot tub in the evening impossible. Last year I paid a major Pest Control company $100.00 a month to fog my property to control the mosquitos, it worked great but we were at the mercy of a company who was not prompt, missed appointments or rain delays = Mosquito re-infestation forcing us inside the house. I am now in control of my pest control thanks to, I purchaced a gallon of Talstar P concentrate to go with my new Blower/Mister and it appears to work wonderfully, I sprayed my yard 2 weeks ago and have not seen 1 mosquito since, that is saying something considering I live 1 block from a large lake in Southwest Michigan. I highly recommend the Solo 451 Blower and Talstar P insecticide, I received my order quickly, I highly recommend ordering from, I will definitely be a repeat customer.

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  • 39 of 41 people found this review helpful:

    3 of 5 stars  Compared to Sthil SR-450...
    By Patrick in Richmond, VA on 09/19/2012
    Verified Purchase

    I have used Solo and Sthil mistblowers for years in the pest control industry. For many years I leaned towards Sthil and the SR-420, but when the Sthil SR-450 hit the market and showed many major flaws (regular leaks, exhaust clogging) I begon to explore other options. I tried many other brands, before revisiting Solo and trying out this newer model. I would say that my biggest setback is the high price, although this website offered a killer deal. Even this price is $100 more expensive than the Sthil SR-450. That said, the Solo has never broken down on me. It runs a little rich, its a little louder than many others, but overall its a great unit if you are looking for an alternative to Sthil.

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  • 24 of 26 people found this review helpful:

    5 of 5 stars  Shale Ridge Farm LLC
    By Blair in Shamokin PA on 08/31/2011
    Verified Purchase

    The mist blower works as expected. No problems, so far. I also use Solo's backpack sprayers and have had many years of good service with them.

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  • 16 of 16 people found this review helpful:

    5 of 5 stars  Best Mistblower out there
    By Joseph in Springfield MO on 04/08/2014

    Awesome machine! It beats out the Stihl I own hands down, its far more comfortable and very simple to use. I find that I have slightly better spray performance with the Solo.

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  • 15 of 15 people found this review helpful:

    5 of 5 stars  Great Product
    By Mps in WI on 09/19/2012
    Verified Purchase

    Awesome product and even better customer service from DoMyOwnPestControl!! Thank you!

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Most Recent Customer Reviews
  • 5 of 5 stars  solo 451 - Does Exactly What You Expect, Does it Well
    By Kevin in Plymouth Massachusetts on 06/27/2016

    I live in a heavily wooded area in Southeast Massachusetts, we have a built in pool and with the short summer season here we want to spend s much time out doors as possible. Because of the wooded area the mosquitos are brutal, I purchased the Solo 451, and I am very happy I did. It works great controlling the mosquitos. I followed directions, used it at dusk, avoided the plants the bees favor and couldn't be happier. This thing is heavy when full with insecticide but very manageable if using a table to load it on your back. Start with the low flow setting on insecticide dispersal. I use the lowest setting and it works just fine even with the high population of mosquitos and large number of trees and bushes. I Highly recommend it. Seems well built. Easy to use, takes no real time to prepare and treat my 3/4 acre, I have a lot of trees and bushes, but it is just a walk around the yard.

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  • 3 of 4 people found this review helpful:

    1 of 5 stars  Beware
    By Tony in California on 04/24/2016

    So far I give it a one star rating because I have not been able to use it yet. I followed the instructions in the owners manual of doubling the oil content in the mix for the first five tanks. I start the engine and it starts running rough immediately after start up. I have pure water in the pesticide tank so I can test the machine. The engine does not climb to full rpm at any time. Choke was disengaged right after starting it up and it seems to operate as designed. I replaced the gas/oil mix in the tank with regular 50:1 ratio/ 2.6 fl oz per gallon and the rough-running continues. I pulled the spark plug and it is black like from running extra rich. I cleaned the SP, reinstall it and the rough-running continues. I don't want to start messing with adjusting the carb so I look up Solo dealer locations to take it in. My closest dealer is over an hour away! I ordered a new spark plug and I'm getting it soon - I will try that first and then I guess I will have to drive over an hour if that does not cure the problem. A GIGANTIC disappointment to say the least. I bought it because it is supposedly Made in Germany . . but . . the Bosch spark plug I took out is Chinese!

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  • 3 of 4 people found this review helpful:

    4 of 5 stars  451
    By T in CA on 04/23/2016

    My company purchased one of these for mosquito treatments. Used it on a couple of houses, so far this is what i've noticed. 1. Its awkward to handle. I weight 150 and have a bad back, it was a struggle to use it all day. If you fill on a tailgate of a truck its not that big of a deal, but if you have to fill and dead lift from the ground it'll wear you out. 2. Its loud. While using it I had to stop and have the "is that safe?" conversation twice with neighbors. So you turn off the engine, set the backpack down, explain yourself for 5-10 minutes, start the engine, put it back on, and get back to work. It can be time consuming. Would be nice to have something more discrete. 3. It puts out way too much product for some houses. Even on the lowest setting, you don't use the trigger much. Instead you take your left hand and adjust the flow and let the idle put out product. Would be nice to have a lower setting or have the flow adjustment in a place where you could do that with your right hand. But overall, I'd give it 4 out of 5 stars. It does exactly what its supposed to do, and if you have shrubs or a heavy wooded area and don't mind the weight/noise it is a perfect product.

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  • 6 of 9 people found this review helpful:

    1 of 5 stars  Wish I got the Stihl
    By Phil in farmington, UT on 04/11/2016

    Mine leaks. The little rubber boot under one side of the tank consistently lets chemical out and gets me wet. I wouldn't mind but I have to assume this stuff I am spraying isn't too healthy for humans. I wear goggles and respirators, and now a waterproof jacket...... which it still runs down and wets my legs. Going to sell mine and buy the Stihl

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Solo 451 Mist Blower
    By David in Milford, IA on 12/01/2015

    I have a 20 year old Solo mist blower that served me well for all those years. I decided it was time to get a new blower and this is as good as the old blower and has several improvements over the old blower. I am very satisfied with the new blower and look forward to many years of service from the new blower.

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  • 6 of 8 people found this review helpful:

    1 of 5 stars  DONT BUY THIS!!!!!!!
    By Stan in Union Grove, Al. on 08/06/2015

    Worst piece of junk I have ever owned. I spray for mosquitoes commercially. Bought this product after having issues with the Stihl SR 450. Day 1 second pull and the handle broke off the pull cord. Got it cranked and it ran so rough I had to immediately go to my mechanic and have him adjust carb. Day 2 spray stream is inconsistant. It changes about every 10 seconds. Almost like air volume varies up and down. After fifth yard the pull start broke. Now there is no resistance when trying to crank motor. Cord will not turn motor to crank. Day 3 Solo sits in garage and I am back to using the first Stihl I bought 6 seasons ago, the SR 420. I will take the problems with the SR 450 over this piece of junk anyday. Rating zero stars or maybe -1.

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  • 12 of 12 people found this review helpful:

    5 of 5 stars  Mosquito Free
    By Jeff in Memphis, TN on 01/14/2015
    Verified Purchase

    This works. It isnít cheap, but it works. I was rather hesitant to spend this kind of money, but my desire to use my backyard in the summer won out. We live in the Memphis, TN area, in a wooded lot with a lot of bushes: i.e. mosquito heaven. I would get multiple bites just walking to the mailbox and back, let alone when our three kids would play in the backyard. If we wanted to spend any time outside, we had to drench ourselves with bug spray, otherwise they feasted. I finally got fed up staring longingly at my backyard through the windows and started looking into ways I could control the mosquitoes in our yard. I bought one of those handheld propane foggers, and it sort of worked for a short time. There wasnít a residual, and the mosquitoes found us soon after. Local companies wanted up to $150/month to fog my yard, and I was just about to break down and do that when I figured that this fogger would pay for itself pretty quickly if I used it for just a couple years. Iím glad I did: mosquitoes are hardly a problem anymore in my backyard. This isnít a 100% solution for me, but we can deal with a bite or two every once in a while in order to go outside whenever we want without bug spray. Itís almost strange to go outside now without mosquitoes swarming us. If I go too long between treatments, the kids ask me to kill the bugs now. Iím still trying to find the right combination of concentrate to water, saturation of my bushes, frequency of fogging, and dosage setting on the fogger. It seems like the bug population starts to pick up after about 2-3 weeks, so Iím not sure if thatís me, or just the reality of where I live. The ďproblemĒ is that I only had to fog a handful of times (once I got it this past summer) in order to control the bugs, so I didnít have many opportunities to tweak how I fogged. The machine runs really well, and starts pretty easily. It is heavy: 4 gallons of water and fuel, on top of a 25 lbs engine and thatís 50+ lbs. Once you get it on your back itís comfortable, but it can be awkward trying to get it there. You also get an additional benefit of being able to use this to apply Talstar to the outside of your house too. I did that while I was treating the yard, instead of using a pump sprayer inside and out like I normally have and we havenít had any bugs inside. I canít speak to the longevity as I just got it this past summer. But, if you something to control the mosquitoes in your yard, this is it.

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  • 8 of 10 people found this review helpful:

    4 of 5 stars  Commercial Use
    By Maryland in germantown on 09/04/2014

    It gives great coverage but the settings are nuts. There are four settings for flow and I can't imagine a situation where you would use the 3rd or 4th setting. The 4th setting blew through the 3 gallon tank in under 2 minutes. I don'think the complaints about the weight are warranted but maybe that's because I am a bigger man.

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  • 10 of 10 people found this review helpful:

    4 of 5 stars  Good but a few things could be better
    By Homeowner in Arkansas on 07/16/2014

    Bought this primarily to spray all of the landscaped and other surrounding area around our house for mosquitoes. First the cons... Based on my experience with farm spraying and from reviews of others, I immediately bought the optional pump. I'm glad I bought it and in fact think it should be standard equipment. There is no way you will get an even spray volume distribution by the standard gravity feed unless you are spraying small plants that can be done with a low and constant nozzle height. And you can't spray the upper parts of tall plants or surfaces at all unless you have the pump. The pump also has a return line to the tank that serves to keep the spray solution mixed. This website doesn't have the optional pump listed, but informed me by email that it was available from them. I had already found it elsewhere in stock with easy automated ordering before I received the email reply from this site, and it arrived before the blower (but I was pleased with how quickly this site shipped the blower as well). Be aware that the optional pump is about $125 (delivered price). It also may be a bit of a challenge for some to install if you aren't at least somewhat of a handyman type. The other problem I encountered is the flex hose doesn't attach securely to the elbow. It slips over a barbed male nipple and is secured by a hose clamp. But the hose barbs are too small (hardly a barb at all) and it's hard to get the clamp tight enough (it's plastic and I was afraid of stripping the screw threads in the plastic or breaking the plastic band if I tightened the clamp any tighter). The first time of use the flex hose came off almost immediately. I put it back on and tightened the clamp tighter, and it still only lasted about half way through the first spray tank load before coming off again. So I put it back on, tightened the hose clamp, and then put two small screws through the flex hose and elbow nipple, adjacent to the hose clamp. That fixed the problem. Other than these issues, which I was satisfactorily able to overcome, I really like this blower. I've only had it about 2 weeks and have only sprayed everything twice (but multiple tank loads each time), so I can't speak first hand to longevity, but the engine seems to be well made, high compression, and starts on first or 2nd pull every time so far. I like that the spray tank and pump system is very easy to rinse/flush when done for the day.

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  • 7 of 7 people found this review helpful:

    5 of 5 stars  Mosquito Buster!!
    By Doc in Groesbeck, TX on 07/13/2014
    Verified Purchase

    I assembled it in 9 minutes. I watched the video prior to using it the first time and began the mosquito termination. I used the Bifen IT. We had a down pour about 90 minutes after application. Still no mosquitoes!!! And that was 3 weeks ago. Very pleased. I do recommend using the respirator I bought from you also. This "Mosquito Buster" is worth every dollar. We can enjoy our yard and gardens once again.

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Most Helpful Q&A's

06/20/2013 Sue from Edgartown, Ma

QWe've just purchased a Solo 451 backpack mist blower from you. What is the best solution for mosquito control?

AOur best recommendation for mosquito control is the Talstar P. It is a great safe insecticide that can be used in a wide variety of areas to control mosquitoes as well as a plethera of other insects. The Talstar is used at the rate of 1 ounce per gallon of water so you would need 3 ounces for the 3 gallon tank of the Solo 451 unit. Concentrate your spray on areas where mosquitoes are more prone to harbor, like nearby bushes and dense foliage of trees that can hold moisture under the leaves.

9 of 11 people found this answer helpful.
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06/01/2013 Mike from Montgomery, Al

QHas the Solo 451 been tested or used to apply herbicides in forestry applications?
Specifically invasive species such as Kudzu, etc. using Triclopyr or Transline, etc.

AWe contacted Solo and they said that any herbicide or insecticide can be used in the Solo unit. So any product that includes Triclopyr or any other ingredient that would be diluted with water in the tank will work fine.

6 of 6 people found this answer helpful.
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05/07/2015 Travis from Minneapolis, Mn

QDo you sell the liquid booster pump for the Solo 451? It is Solo part number 44 00 235.
I would like to purchase the Solo 451 soon to treat 25 15" spruce trees. I spoke with Solo and they said I would need to purchase the optional liquid booster pump to achieve the height to reach the upper portion of the trees. I would like to purchase this liquid booster pump at the same time I purchase the mist blower. Thanks!

AYes, we do offer the Liquid Booster Pump for Solo 451 Part # 44 - 00 - 235 for $140.03 however, it is a special order item and needs to be purchased by phone with one of our sales representatives. Please give us a call at 866-581-7378.

3 of 3 people found this answer helpful.
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05/29/2014 Fabio from Lake Barrington

QTalastar P vs Bifen IT
I just got a response from another question suggesting this Solo 451 product along with Bifen IT. In all recommendations I reviewed on this website it is recommended Talstar P as safer product. I understand Bifen is very toxic. Can you please explain the differences between both products? My property has a natural pond in the back (200 ft from the house) and it is a wooden area. Thanks

ATalstar P and Bifen IT are essentially the same product but made by different manufacturers. Bifen IT is the low cost, generic version of Talstar with the same efficiency. Talstar P and Bifen IT both share the benefit of being a low toxic option with minimal dermal toxicity. However, since you are close a pond we would recommend using EcoVia EC which is a safe, natural, residual insecticide that can be safely used around bodies of water without harming aquatic life.

3 of 4 people found this answer helpful.
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08/23/2012 Chris from Los Angeles

QCan use the Solo 451 Mist with insecticide like Riptide 5.0% Pyrethrin ULV for cockroaches control?

AYou can use Riptide in the Solo 451 but it must be used outdoors only. Only roaches that are directly contacted by the wet spray will be killed.

3 of 6 people found this answer helpful.
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Most Recent Customer Questions

03/24/2016 Dennis from Sanger

QCan the Solo 451 be used as a leaf blower also, and is it efficient?


Yes, the Solo 451 Mist Blower can also be used as a leaf blower and it does a great job.

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03/22/2016 Benton from Texas

QWhere is the fuel cock shut off valve on the Solo 451 Mist Blower?
Manual says to shut off the fuel cock and run gas out before storage. WHERE is the Fuel Cock ? Please leave exact details. Thanks.


There is no fuel cock shut off valve on the Solo 451 Mist Blower. The manual is for both the Solo 451 and 444 models so that is specific to the 444 model.

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08/20/2015 Ryan from St. Petersburg, Fl

QIs the Solo 451 suited for commercial use?
I'd like to be able to use it for up to 20 sprays a day, 5-6 days a week.


Yes, the Solo 451 Mist Blower is designed for commercial use, and many professional pest control operators use this machine regularly. Be sure to care for the machine as directed on the product label.

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07/21/2015 Rob from Bellefontaine, Oh

QIs the Solo 451 the correct product for acreage treatment (7 acres) of mosquitoes ?
The area has small natural spring lots of mosquitoes and deer flies.


The Solo 451 Mist Blower is a 4 gallon backpack sprayer. This would work for seven acres, however, you will be doing a lot of walking.

1 of 1 people found this answer helpful.
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06/12/2015 Jack from Abington Ma

QWhen would you suggest purchasing the additional pump for the Solo 451?

AWe would suggest buying the booster pump when you are wanting to reach higher than the Solo 451 blows. The general misting range is 40' horizontal and 35' vertical for hard-to-reach spraying areas

1 of 1 people found this answer helpful.
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06/05/2015 Arnold from Jasper Mn 56144

QCan the Solo 451 apply dust insecticides?
I would like to buy a high end gasoline engine powered back pack sprayer that could also be used to apply dry powders to vegetation, such as diatomaceous earth - if such a thing is available.

AWe are not aware of a backpack sprayer that will apply a liquid and dust. If you locate one, please let us know and we can try and make it available for you. We apologize for this inconvenience.

1 of 3 people found this answer helpful.
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05/30/2015 Duane from Michigan

QWhy is a booster pump needed for a Solo 451?
I am interested in purchasing the Solo 451 however I am more than a little concerned about individuals asking about the need for a booster pump. What company manufacturers the 2-cycle engine on the Solo 451. The warranty of only 90 days seems to indicate a lack of reiablity? Maybe I should purchased the Sthil 450?

AMost applications do not require a booster pump for the Solo 451. You can view the operation of this machine in our video on the product page. The warranty on the engine itself is two years. Solo manufacturers all their own engines in Germany.

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05/23/2015 Tim from Columbia

QChemicals to use in the Solo 451 Mist Blower
I recently purchased the 451, and after reading previous Q/A is assume that any pesticide that is liquid based and diluted with water is acceptable to use in the blower, correct? I'm using Talstar P for Mosquito control, but I want to use Demand CS around the outside of the house for more bug control. Is this acceptable to use in the blower?

ADemand CS is acceptable to be used in a Solo 451 Mist Blower. You will use 0.2-0.8 fl. oz. of product per gallon of water depending on what you are treating for.

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03/19/2015 Gregg from Bridgehampton, Ny

QCan the also Solo 451 Mist Blower be used to apply granulars/seeds?

ANo, the Solo 451 Mist Blower can only disperse water based liquids not granules or seeds of any kind. We do carry spreaders for applying granules.

1 of 1 people found this answer helpful.
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12/31/2014 Glenda from Atlanta, Ga

QWhich product(s) do you recommend for both MOSQUITO and FLEA control with the Solo 451 Mist Blower?

AWe would recommend Bifen IT insecticide mixed with Nyguard IGR for both mosquitoes and Flea control. You would simply mix 1 oz of Bifen IT with 12 mL of NyGuard IGR per gallon of water to kill and prevent mosquitoes and fleas from reproducing. 

2 of 2 people found this answer helpful.
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