6 Best Backpack Sprayer Reviews 2018

Apart from making a time-consuming job easier and quicker, the best backpack sprayer for your needs will allow for selective treatment of targeted plants without the risk of delivering the unwanted and potentially harmful chemicals to other plants.

This practical and versatile tool always comes in handy when you have a lot of spraying to do, both at your own garden or orchard as well as for commercial purposes.

Top 3 Backpack Sprayers


  • 60 PSI pump with adjustable flow
  • Acid wand with double swage connectors
  • Heavy-duty reinforced base plate, door, and battery strap


  • Exclusive internal No Leak pump of 150 PSI
  • 21-inch long poly wand
  • Various nozzles included


  • In-line filter and brass components
  • High-pressure capability (maximum 150 psi)
  • Premium quality design and materials

As backpack sprayers are completely portable, you can conveniently use them virtually everywhere as long as there’s access on foot.

Backpack sprayers come with a wide variety of options and variations as regards their operation and design. We’ll try to help you make an informed decision about which backpack sprayer is the best for your needs.

Best backpack sprayer for home and commercial use – Buying guide

Backpack sprayers usually come with a large high-density PE (polyethylene) holding tank with the capacity ranging 2-6 gallons. There’s also a smaller interior tank in which the contents gets pressurized. 

It is in this spray tank where the compressed air is implemented in order to release the contents when you pull a sprayer trigger.

Manual, battery or gas operated – which do I need?

Sprayers can be operated by pumping the contents out manually but there are also battery powered and gas powered models. Each type has their advantages and the choice depends on your budget as well as on the type of task at hand.

A manual hand pump sprayer is much more affordable than the battery or gas powered models. They are simple to operate as the pumping is done manually. For that very same reason, it can get tiresome to operate them if you have a lot of spraying to do.

chose the best backpack sprayer for you

On the other hand, the fact that manual models are so affordable makes it very likely that you will get a few units for different tasks and different chemicals or, simply put, different contents.

This would be a wise choice because washing and cleaning the sprayer thoroughly in order to use a different chemical takes time and effort. On top of this, there are chemicals which are not supposed to mix or get in touch with other chemicals.

So, why not get a few models and use them for dedicated tasks without the need to clean them several times in a short time?

A battery or gas powered sprayer makes it easy to take care of spot applications effortlessly and fast. The same goes for covering large areas. In addition, powered sprayers often have more optional attachments than non-powered sprayers.

Compared to gas operated models, battery operated backpack sprayers are quiet, economical and environmentally friendly. Gas powered, on the other hand, won’t stop working once the battery needs recharging: you simply add more fuel and go on spraying.

Overall, getting a sprayer with a rechargeable battery can increase your productivity and make your work less tiresome while a good ol’ manual sprayer needs no recharging and costs less so you can buy at least two or three manual units for the price of one powered.

What sort of pumps are there?

Backpack sprayers come in two basic styles: the piston pump and the diaphragm pump sprayers.

The piston pump style allows for a higher pressure, but its sensitive mechanism is intended for use only with non-abrasive solutions. Piston pump sprayers cannot handle wettable powders (WP) because these powders cause excessive wear and tear and early breakdown of the piston and the pump.

This type of pump works with a pumping (up and down) motion inside the chemical tank. The abrasive chemicals destroy the piston so this type of sprayer has a limited use.

A diaphragm pump provides less pressure than a piston pump, but it is more durable. It can also be used with a wider variety of the best insecticide products, best herbicide, and best weed killer for lawn. You can use this type of pump sprayer for both liquid and wettable powder applications.

The most popular brands of backpack sprayers like Chapin or Field King use the diaphragm pump spray units. Consider it the best option in any brand because the diaphragm pump is durable and easy to use.

Diaphragm pumps do not have internal cylinders. As you pump using the pump handle, the movement of the diaphragm creates pressure.

The benefits of the right type of sprayer for the task

Whichever type you decide to get, make sure it’s lightweight enough so that you can wear it comfortably using shoulder straps and a waist belt. A good balance of portability and capacity is a must.

When selecting a sprayer for your home, yard, garden, acreage or commercial use, it is important to consider all the tasks at hand. If you use a variety of chemicals in several different settings, you may need to invest in several different types of sprayers.

Using several sprayers help prevent co-mingling potentially dangerous chemicals and ensuring you use the most efficient equipment to perform your tasks.

There are numerous benefits of using a backpack sprayer in the home, garden, farm or any commercial settings.

Inexpensive, easy-to-use backpack sprayers are a great solution for small farmers and home gardeners. Small businesses, weed and pest control operations and serious professionals might need a powered sprayer.

see reviewed backpack sprayers

Purchasing several sprayers may be necessary if you intend to use it for different purposes, such as insect and pest control, killing weeds, wallpaper removal or even deck cleaning.

These are just a few tasks you can make easier with a good-quality backpack sprayer. When deciding on the model, make sure the capacity fits the task and that the sprayer can be used for the type of chemicals you intend to apply.

Whichever model you choose, you mustn’t forget to clean the unit thoroughly after every use. The easiest way to do this is by dispersing about half a gallon of clean water through the unit. Go for the sprayers which are easy to maintain as well.

Other features to consider include the option to modify or upgrade the basic unit, the amount of work and the terrain, the level of effort involved in spraying and the availability of replacement parts.

The best bet is to go for a well-known brand and choose the model based on the predicted usage, the needed tank capacity and the pump type based on the chemicals you’ll be using. Read our reviews as we have indeed narrowed the choice to 6 best units available.

6 Best Backpack Sprayers Reviewed


My 4 Sons - 4-Gallon Battery Powered Backpack Sprayer is designed to be versatile, durable, affordable, and easy to use.  It works with most chemicals (acids, bleaches, solvents) including Roundup, Wet and Forget, LastiSeal concrete sealer, lawn care and pest control, diesel, oil, fence and deck stains, de-icers, alcohol, mineral spirits, cleaners and many more.

The adjustable pressure, variable nozzle output, and extra long wand successfully eliminate overspray. This makes the M4 one of the top choices among professionals and homeowners alike.

A reliable automatic 60 PSI pump with the adjustable flow will allow you to spray up to 30 feet. M4 sprayer is the model to go for if you need to use the ladders because it frees up your pump hand to hold on safely.

You’ll be able to spray up to 200 gallons on a single charge, which is more than enough even for professional use. The large wide mouth opening allows for easy filling and features a screen filter to keep dirt out of the tank.

The autonomous mode will allow you to work with the sprayer for about 8 hours after you fully charge the battery. This time will be sufficient to treat a great number of plants.

The included AC charger completely charges the battery in only 8 hours. Thanks to battery life indicators, your work won’t be interrupted unexpectedly: you will know when you need to recharge the battery.

This sprayer includes a heavy-duty extra long adjustable stainless steel wand (20-40 inches) and a plastic wand as well.

Things We Liked

60 PSI pump with adjustable flow

Acid wand with double swage connectors

Heavy-duty reinforced base plate, door, and battery strap

Reinforced high temperature/ high-pressure hose

Adjustable length stainless steel wand

Things We Didn't Like

The straps could be longer and better quality


Field King Professional 190328 No Leak Pump Backpack Sprayer is capable of doing the work of both a diaphragm and piston sprayer. It features the exclusive internal No Leak pump which guarantees no leaks on your clothing and back.

The internal paddles ensure that the materials you are spraying remain mixed and ready to spray. Whatever the toxicity of the chemicals you are using, you are guaranteed not to come into contact with any chemicals.

The proprietary pump is equipped with Viton seals which can be changed in a matter of minutes without the need for tools.

The 21-inch long poly wand can be used to treat all the hard to reach places. In addition, this model comes with multiple nozzles included in the purchase to maximize the number of applications it can be used for.

The nozzles include one adjustable brass nozzle for conical spraying, one flat, wide fan nozzle which can spray at an angle of 70 degrees, one foaming nozzle and one flat, narrow nozzle that can spray at a 30-degree angle.

In addition, the Field King Professional 190328 No Leak Pump Backpack Sprayer can also be used in conjunction with most TeeJet nozzles.

The poly wand features a trigger lock. It’s super gentle and convenient because it eliminates the strain which comes with holding the trigger in one position for a long time.

The built-in pressure regulator will maintain a consistent, reliable pressure when in use. For high-pressure applications, this unit can achieve a max PSI of 150. The tank itself holds up to four gallons of solution, making it ideal for small to medium-sized applications. The tank comes with a built-in carrying handle for convenient transport and storage.

Things We Liked

Exclusive internal No Leak pump of 150 PSI

21-inch long poly wand

Various nozzles included 

Up to four gallons tank capacity

Built-in carrying handle

Things We Didn't Like

Not as small storage footprint as you expect


Roundup 190327 No Leak Pump Backpack Sprayer comes with a patented pump design which has minimal high-wear parts and can be repaired quickly without tools as the pump is easy to access.

The pump enables the pressure to reach 150 PSI - 65% so you will be able to spray hard-to-reach spots and create with more precise spray patterns.

It comes with four different nozzles, poly adjustable, 2 flat fans, and foaming nozzle. You can choose the appropriate nozzle depending on the task. In addition, Roundup 190327 is compatible with TeeJet nozzles. The pump arm folds away for easy storage.

This model comes with a pressure regulator to prevent overshooting. The internal agitator mixes the batch so the mixed chemical won't settle at the bottom of the tank.

You can put this sprayer together very easily using only pliers to loosen the nozzle. The rest of the assembly is a snap.

Once assembled, it works well and keeps your back and clothing dry and safe thanks to the tank’s no-leak design. The shut-off is premium quality and lockable. You can use solutions, comprising powders, liquids, and water-soluble substances.

The wand on this unit is made of durable polyester. It’s extra long at 21 inches and has Viton sealing that provides optimal chemical resistance. The built-in carry handle and wand storing option in the tank itself are two more great features.

The in-a-few-minutes Viton seal is an innovative design addition. It enables tool-free alteration. The locking trigger and premium quality design and materials make this hand pump sprayer ergonomic and convenient to use. The padding in the chest strap, waist belt, and shoulder cinch add even more comfort. A great sprayer, overall!

Things We Liked

In-line filter and brass components

High-pressure capability (maximum 150 psi)

Premium quality design and materials

Ideal for left- and right-handed users

Outstanding nozzle design

Things We Didn't Like

Occasional pressure problems reported


Field King Max 190348 Backpack Sprayer is another quality sprayer featuring a high-pressure piston pump sprays which can deliver up to 150 PSI. However, the low-pressure regulator included enables spraying at 25 PSI, which is ideal for herbicides.

The 4-nozzle system includes one brass adjustable nozzle, 2 flat fan nozzles, and the Field King patented foaming nozzle. Viton gaskets and seals provide excellent chemical resistance.

The new comfortable harness system will make spraying less tiring with the added benefits of the thick padded shoulder straps and waist belt. The storage pocket for extra nozzles is a nice extra and so is the fold-away pump handle.

The sprayer can easily be configured for left or right-hand pump operation. You will also appreciate the professional stainless steel wand with comfort grip, lock-on feature, and the in-line filter.

Field King Max 190348 comes with a durable, 21-inch stainless steel wand. There are also a great quality Viton seals for chemical resistance coupled with a lockable shut-off and brass components as well as an in-line filter.

The 4-gallon tank allows for a lot of spraying but the padded straps and the hip belt will really help you carry the sprayer for a long time. A solid quality sprayer at a good price!

Things We Liked

No Leak Pump design

You can change seals in minutes with no tools

4 nozzles included: brass adjustable, 2 flat fans, and a foaming nozzle

TeeJet nozzles compatible

Lockable shut off with brass components

Things We Didn't Like

The harness is a little too big for daily use


Roundup 190314 Backpack Sprayer features adjustable padded straps with waist belt and built-in lumbar support. It includes three nozzles for versatility: one poly adjustable, one high volume fan, and one low volume fan.

Cleaning, sealing, fertilizing your lawn or garden, or controlling insects in your yard – you name it, this sprayer will help you do the task efficiently and conveniently.

The large piston pump pressurizes in fewer pumps and has Viton seals for long-lasting chemical resistance. The heavy-duty, non-corrosive wand with reinforced hose helps you spray the hard-to-reach areas.

A good quality shut-off features a comfort grip, a lockable trigger to prevent hand fatigue and a removable in-line filter to reduce clogging. The large tank opening and basket filter make it easy to add liquids and catch debris before going into the tank.

With adjustable padded straps, waist belt, and chest cinch strap, the backpack harness will provide comfort while you work. The pump handle reverses for left- or right-handed use and the tank has a built-in carry handle with wand storage.

Roundup 190314 Backpack Sprayer is also great for spraying herbicides and weed killers. The three nozzles included can be replaced by Tee Jet nozzles for added versatility.

Out of the box, a bolt and nut attach the pump handle. Once you screw the wand into the hose, insert a tip into the end, and screw the end on the wand, you’re good to go!

Things We Liked

Heavy-duty poly wand

4-gallon tank

Viton seals and gaskets throughout the pump and shut-off

Adjustable padded straps with waist belt and built-in lumbar support

3 nozzles for versatility

Things We Didn't Like

The rubber grip on the handle could be better


Chapin 63985 4-Gallon Battery Backpack Sprayer can generate a 25-feet water jet which is long enough to hit tall trees and penetrate thick bushes. The pressure output at 40 PSI is also impressive and adds to the overall professional grade performance.

Chapin 63985 was designed to deliver top-notch performance without much of your effort, given that it can be run in autonomous mode for up to 2 hours which is the equivalent of about 50 gallons application.

Wearing this sprayer is comfortable because the shoulder, chest, and waist straps are cushioned and adjustable along the length. This ensures a good fit and creates a feeling of comfort during the two hours of spraying.

Chapin 63985 weighs approximately 42 pounds when full and won’t feel too heavy or bulky during use. It comes with 2 separate nozzles (a fan nozzle and a cone nozzle). The first one is a mister, and the other provides a fuller stream. Each nozzle is adjustable by turning it counter-clockwise or clockwise to provide a fine spray or a heavy stream.

As long as you take good care of your Chapin 63985, it should last you a lifetime. You will need to replace the motor and the battery every couple of years.

Things We Liked

35-40 PSI pressure

35-foot maximum horizontal spray stream

Deluxe padded straps

20-volt Black & Decker Lithium-Ion battery with a battery charger

Two adjustable nozzles included

Things We Didn't Like

The battery placed under the tank seems less than safest option in case of leaks