Best Backpack Sprayers

The employment of pesticides and herbicides has become a critical aspect of preserving our garden’s aesthetic. While it is possible to accomplish this task using spray bottles, for more substantial coverage, backpack sprayers prove to be more handy and simple to use.

To give you an idea of what we are talking about, here is a list of the best backpack sprayers for insecticides, pesticides, fertilizers, herbicides and weed killers.

10 Best Backpack Sprayers

1. Field King Professional Backpack Sprayer

The Field King Professional 190328 features a built-in agitator that can handle a variety of mixtures such as water-soluble, powders, and liquid solutions. Its internal paddles, which are controlled through pump-action, can keep your chemical solution mixed and ready to be sprayed at all times.

This knapsack sprayer can generate pressures of up to 150 PSI which enables you to produce more accurate spray patterns that can reach faraway areas easily. It offers a 21-inch poly wand that includes 4 nozzle attachments (two flat fans, brass adjustable, and foaming nozzle) that you can use for different types of applications.

Moreover, the Field King Professional 190328 comes with a No Leak pump design and lockable shut-off feature for added safety and convenience.

Why we like it

• Ability to generate strong pressure of up to 150 PSI.
• Includes a built-in agitator that can handle a variety of mixtures.
• Offers a 21-inch poly wand that includes 4 nozzle attachments.
• Features a No Leak pump design and lockable shut-off mechanism for added safety and convenience.

What we don’t like

• The solid color of the tank makes it a little bit difficult to determine the amount of solution remaining.

Our Verdict

The Field King Professional 190328 is ideal for those that want a reliable sprayer that they can safely use in their lawns and garden. Its built-in safety features and multiple functions make weeding and other garden tasks easier and more convenient to perform.

2. M4 MY4SONS Backpack Sprayer

The M4 MY4SONS Battery Powered is a piece of reliable weeding equipment that can provide 6 to 8 hours of uninterrupted spraying time on just a single charge. It features a variable pressure switch that enables you to produce accurate and strong spray patterns that range from 20 PSI up to 60 PSI.

This automatic sprayer uses a powerful 8AH lead-acid battery that lasts 4 times longer than those batteries that are used by other sprayers. It includes an adjustable stainless steel wand and an acid bleach wand that comes with an easy squeeze handle with a safety locking mechanism.

In addition, the M4 MY4SONS Battery Powered comes with thick shoulder pads, an AC charger, an extra battery compartment, and a no-leak lid.

Why we like it

• Can be used for 6 to 8 hours on just a single charge.
• Uses a reliable 8AH lead-acid battery.
• Includes 2 wands (adjustable stainless steel wand and acid bleach wand).
• Comes with thick shoulder pads, an AC charger, an extra battery compartment, and a no-leak lid.

What we don’t like

• No additional nozzle attachments included.

Our Verdict

The M4 MY4SONS Battery Powered offers a convenient way to perform your lawn and garden spraying tasks quickly and efficiently. Its 8AH battery can supply you with hours of comfortable spraying experience without the hassles of manual pumping.

3. Oregon 518769 Backpack Sprayer

The Oregon 518769 offers a non-pressurized 4-gallon tank that is both lightweight and durable. It features a compact design for easy storage and a flexible 6-foot hose that makes it more convenient and easy to use. This inexpensive sprayer includes a handy lance and spray nozzle of your choice (flat flan or adjustable cone). It comes with a lance holder, a spare seal kit, and a shoulder strap for your added comfort and satisfaction.

Why we like it

• Lightweight and durable.
• Features a flexible 6-foot hose.
• Includes a handy lance and spray nozzle of your choice (flat flan or adjustable cone).
• Comes with a lance holder, a spare seal kit, and a shoulder strap.

What we don’t like

• The strap that is included lacks the proper padding.

Our Verdict

The Oregon 518769 is recommended for those that are looking for an inexpensive sprayer that offers great value for their money. This affordable backpack sprayer offers a lot of features and accessories that you can use to make your lawn and garden healthy and beautiful.

4. Chapin International 61500 Backpack Sprayer

The Chapin International 61500 features a translucent tank with a 4-inch wide opening for faster cleaning and filling purposes. It offers a 2-stage filtration system that is strategically located at the top of the tank and at the shut-off area.

This backpack sprayer has a 48-inch hose and a 20-inch extension wand with a poly shut-off feature that includes 2 nozzle attachments (cone and fan tip) for added flexibility. It comes with comfortable padded shoulder straps and a Nitrile seal for your safety and convenience.

Why we like it

• Features a translucent tank with a 4-inch wide opening.
• Offers a 2-stage filtration system.
• Includes a 48-inch hose and a 20-inch extension wand with a poly shut-off feature.
• Comes with comfortable padded shoulder straps.

What we don’t like

• Has a limited number of nozzle attachments included.

Our Verdict

The Chapin International 61500 is great for those that are looking for a compact but efficient knapsack sprayer that they can effectively use in their home garden. It is a lightweight sprayer that offers a reliable 2-stage filtration system that provides a comfortable and convenient spraying experience.

5. Roundup 190314 Backpack Sprayer

The Roundup 190314 features a 4-gallon tank capacity that is more than enough to meet the needs of all your lawn and garden tasks. Its pump and shut-off components utilize Viton gaskets and seals that help prolong the life of this sprayer.

This durable sprayer offers a heavy-duty 21-inch poly wand with a lock-on feature that enables you to perform continuous spraying with ease and convenience. It comes with a removable in-line filter, an adjustable nozzle, 2 additional flat fan tips, a sprayer wand storage, and a built-in carry handle.

Why we like it

• Utilizes Viton gaskets and seals.
• Heavy-duty 21-inch poly wand with lock-on feature.
• Comes with a removable in-line filter, a sprayer wand storage, and a built-in carry handle.
• Includes 3 interchangeable nozzles ( 2 flat fan tips and a poly adjustable nozzle).

What we don’t like

• PSI is not adjustable.

Our Verdict

The Roundup 190314 is ideal for those that want a simple and easy to use spraying tool for their homes. This sprayer is comfortable and convenient to use. Plus, it is durable and is capable of handling various spraying tasks that are needed in your lawn and garden.

6. Field King Max 190348 Backpack Sprayer

The Field King Max 190348 is a strong and durable 4-gallon sprayer that can reach a maximum pressure of 150 PSI easily. It is built to kill weeds and spread herbicides safely with its no-leak pump design that prevents any chemicals from accidentally dripping out of its container.

This powerful sprayer features a stainless steel 21-inch wand that uses Viton seals for added protection and resistance to chemical mixtures. It has a high-quality lockable shut-off feature with an in-line filter and 4 nozzle attachments for added flexibility and convenience.

Why we like it

• Can reach a maximum pressure of 150 PSI easily.
• No-leak pump design.
• Features a stainless steel 21-inch wand.
• Comes with 4 nozzle attachments (foaming, 2 flat fans, and brass adjustable).

What we don’t like

• The solid color of the tank makes it a little bit difficult to determine the amount of solution remaining.

Our Verdict

The Field King Max 190348 is recommended for those that are looking for a powerful sprayer that can reach faraway areas easily. It features a long stainless wand that can produce a maximum spray pressure of up to 150 PSI.

7. Chapin 61900 Tree and Turf Pro Commercial Backpack Sprayer

The Chapin 61900 Tree and Turf Pro Commercial offer a 3-stage filtration system with a removable in-tank filter. It features a translucent tank that has a wide 4-inch top opening for easier cleaning and filling purposes.

This amazing backpack sprayer has a long 48-inch clear PVC hose and a stainless steel 20-inch extension wand with adjustable brass nozzles. It comes with padded shoulder straps, a comfortable grip shut-off handle, and 3 nozzle attachments that you can use for various spraying applications.

Why we like it

• Offers a 3-stage filtration system with removable in-tank filter.
• Comes with a 48-inch clear PVC hose and a stainless steel 20-inch extension wand.
• Includes 3 nozzle attachments.
• Wide 4-inch top opening for easier cleaning and filling purposes.

What we don’t like

• Replacement parts are a little bit expensive.

Our Verdict

The Chapin 61900 Tree and Turf Pro Commercial is recommended to use for spraying fertilizers, pesticides, and weed killing solutions. Its 3-stage filtration system prevents any form of clogging which makes it more convenient and easy to use.

8. Solo 475-B Diaphragm Pump Backpack Sprayer

The Solo 475-B Diaphragm Pump uses a high-performance pump that is great for wettable powders, bleach, and liquid solutions. Its diaphragm pump is made from the finest Tivilon materials that are highly resistant to harsh chemicals.

This 4-gallon capacity sprayer features a 48-inch high-pressure nylon-reinforced hose and an interchangeable pump handle that enables it to be used by left and right-handed users. It has a large 4.25 inches top opening that features a built-in strainer that allows you to easily fill the tank faster.

Furthermore, the Solo 475-B Diaphragm Pump includes 4 nozzle attachments ( fan spray, jet stream, adjustable, and hollow cone nozzles) that allow you to conveniently use this knapsack sprayer for different spraying tasks and applications.

Why we like it

• Uses a high-performance pump.
• Highly resistant to harsh chemicals.
• Features a 48-inch high-pressure nylon-reinforced hose and interchangeable pump handle.
• Includes 4 nozzle attachments ( fan spray, jet stream, adjustable, and hollow cone nozzles).

What we don’t like

• Does not include a wand holder.

Our Verdict

The Solo 475-B Diaphragm Pump offers a wide range of functionalities and features. Its high-performance pump and its 4 nozzle attachments give you the freedom to use this knapsack sprayer in a variety of spraying tasks and application.

9. Roundup 190327 Backpack Sprayer

The Roundup 190327 No Leak Pump features a patented pump design that can be easily repaired without the use of tools. It has a built-in agitator and pump-activated internal paddles that keep the solutions mixed and ready to use.

This sprayer offers a foldable pump handle for easy storage and a large top opening with a built-in filtration basket for faster filling and debris prevention purposes. It comes with a 21-inch poly wand that includes 4 useful nozzle attachments (2 flat fan, foaming, and adjustable poly nozzles).

Why we like it

• Features a patented pump design.
• Has built-in agitator and pump-activated internal paddles.
• Offers a foldable pump handle for easy storage.
• Includes 4 useful nozzle attachments (2 flat fan, foaming, and adjustable poly nozzles).

What we don’t like

• Replacement parts are hard to find.

Our Verdict

The Roundup 190327 No Leak Pump is perfect for people who want a knapsack sprayer that comes with lots of bells and whistles. This sprayer offers numerous functions and features that make it more convenient to use than other sprayers that are available in the market today.

How to Choose the Best Backpack Sprayer

Whenever you are looking for the perfect backpack sprayer that you can effectively use for your home garden, it is recommended that you take into consideration the following criteria before making a decision.

Intended Purpose

Although some backpack sprayers have multiple functions, not all of them are designed to perform every spraying tasks and applications that you need. Some are perfect for spraying liquid chemicals while others are great for powder and water-soluble mixtures.

In line with this, it is important to choose a sprayer that is designed to perform the specific function that you need and require. It is also wise to choose a sprayer that produces the right amount of PSI that you need in order to accomplish your tasks properly without causing any unwanted damages.

Type of Nozzle and Wand

Another criterion to consider before making a decision is the type of nozzle and wand that the knapsack sprayer features. It is advisable to select a sprayer that comes with the proper wand and nozzle that you need in order to perform your spraying tasks quickly and efficiently.

Backpack Sprayer FAQs

What Are the Two Types of Backpack Sprayer?

The two types of backpack sprayers are the piston sprayer and the diaphragm sprayer.

What is the Difference Between a Piston and a Diaphragm Sprayer?

In general, the piston sprayer can produce more power than the diaphragm sprayer, but the design of the diaphragm sprayer is more appropriate to use for more corrosive chemicals due to its higher resistance factor than the piston sprayer.

How Does a Piston Sprayer Work?

A piston sprayer works by building pressure inside its cylinder housing whenever its piston moves up and down when pumped.

How Does a Diaphragm Sprayer Work?

A diaphragm sprayer works by using a flat sheet that flexes up and down inside a built-in housing that is screwed together to create pressure. The pressure created is typically weaker than those produced by piston sprayers. On the other hand, this type of sprayer lasts longer due to lesser friction generated against its cylinder walls.

Final Thoughts

Finding the best backpack sprayer for your home requires you to gather information, such as the purpose that it is intended for and the appropriate type of wands and nozzles to use, in order to make an informed decision that can help make your spraying tasks quicker and easier to perform.

For our list, the top overall choice is the Field King Professional 190328 Pump Backpack Sprayer. We selected this entry due to its strong pressure and numerous added features that can help you perform your spraying tasks and applications with ease and convenience.