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D.B. Smith FIELD KING 190328 Backpack Sprayer, 4 Gallon,

4.6 4.6 out of 5 stars 6,059 ratings

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Sprayer

Purchase options and add-ons

Brand D.B. Smith
Tank Volume 4 Gallons
Color White
Material Brass
Item Weight 12.8 Pounds

About this item

  • Internal No Leak Pump design is safer to use chemicals will not drip down your back. Internal piston pump delivers up to 150 PSI
  • Durable, 21 inch poly wand with the highest quality Viton seals can be used with Wet table powders and liquids for all applications does the work of both a piston and diaphragm backpack
  • Premium, lockable shut off with brass components and an in-line filter.
  • Easy access pump allows changing of seals in just minutes with no tools
  • 4 nozzles included: brass adjustable, 2 flat fans, and foaming nozzle. Also accepts Tee Jet nozzles.

Customer ratings by feature

Sturdiness
4.5 4.5
Easy to assemble
4.5 4.5
Durability
4.5 4.5
Easy to use
4.5 4.5

Frequently bought together

$84.97
Get it as soon as Wednesday, Mar 27
In Stock
Ships from and sold by Amazon.com.
+
$13.19 ($0.82/Fl Oz)
Get it as soon as Wednesday, Mar 27
In Stock
Ships from and sold by Amazon.com.
+
$13.99 ($1.75/Fl Oz)
Get it as soon as Wednesday, Mar 27
In Stock
Sold by Bluewater Chemgroup and ships from Amazon Fulfillment.
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D.B. Smith FIELD KING 190328 Backpack Sprayer, 4 Gallon,
Field King D.B. Smith FIELD KING 190328 Backpack Sprayer, 4 Gallon,
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Price-30% $84.97
List:$121.99
$89.99$79.99$289.42$146.49$92.97
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Sunday, Mar 31
Get it as soon as Thursday, Mar 28
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Easy to assemble
4.5
3.2
2.7
4.7
4.4
Easy to use
4.5
3.7
4.2
4.5
4.3
Value for money
4.2
3.5
4.0
4.4
4.1
Battery life
3.7
4.3
4.4
4.3
Maneuverability
3.4
3.0
4.5
Sold By
Amazon.com
Amazon.com
WOEKBON
Amazon.com
Amazon.com
NPGLOBAL
tank volume
4 gallons
4 gallons
4 gallons
4 gallons
4.2 gallons
power source
Manual
Battery Powered
Battery Powered
Battery Powered
Battery Powered
Battery Powered
material
Brass
High Density Polyethylene (HDPE)
Polypropylene (PP)
Polypropylene (PP)
🏆Top1 Backpack Sprayer
maximum pressure
60 pounds per square inch
30 pounds per square inch
100 pounds per square inch
style
Sprayer
4 Gal
Compact
Backpack
Backpack
Translucent

From the manufacturer

Field King Sprayers For Professionals

What Makes Our Backpacks Better

Field king backpack sprayer Internal pump cut away

Internal Paddles

Built-in agitator can handle liquids, powders, and water-soluble solutions. Internal paddles, activated by pump action, keeps them mixed, in solution, and ready to spray.

Tested to over 1,000,000 cycles with a wettable powder without failure.

Internal Pressure Chamber

Allows pressure to reach 150 PSI - 65% higher than other diaphragm pump backpacks. Spray hard-to-reach areas and create more precise spray patterns.

Repair in Minutes - No Tools!

Patented pump design has minimal high-wear parts (60% less) and can be repaired in minutes without tools. Less down time!

190328 Field King Nozzles

Superior Shut-Off

Internal components made of durable brass components.

Viton Seals and Gaskets

The highest quality Viton seals throughout for maximum chemical resistance.

6 Nozzle System

Includes 6 Nozzles: adjustable brass, high volume wide fan (brown), low volume wide fan (red), low volume narrow fan (yellow), jet stream (orange) and foaming (black). Also accepts TeeJet nozzles.

Filtration Basket

Large tank opening with filtration basket keeps large debris out of tank while filling.

One Way Valve

Field King Wand Clip

Pump Handle

Handle can be reversed for left-or right-handed use.

One Way Valve

Prevents spills if tank is inverted.

Threaded Bolt

For secure handle attachment with no slack (far superior to a typical cotter pin found in competing products).

Wand Storage

Integrated carry handle and wand storage.

Looking for specific info?

Product guides and documents

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ]

Feedback

D.B.

D.B. Smith FIELD KING 190328 Backpack Sprayer, 4 Gallon,


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Product Description

FIELD KING 190328 Professional No Leak Pump Backpack Sprayer does the work of a piston or diaphragm backpack sprayer. The exclusive internal No Leak Pump keeps your back and clothing dry. The paddles keep liquids, powders, and water-soluble solutions mixed, in solution, and ready to spray. Also the pump features Viton seals that can be easily changed within minutes without tools (up to 7x faster than the leading competitor). The premium shut-off offers a comfort grip, lockable trigger to prevent hand fatigue, and a removable in-line filter to reduce clogging. The FIELD KING 190328 Backpack Sprayer is capable of spraying up to 150 PSI - perfect for those hard-to-reach areas. The included pressure regulator maintains a low, continuous 25 PSI (great for spraying herbicides and weed killers). The tank has a built-in carry handle with wand storage. With adjustable padded straps, waist belt and chest cinch strap, the backpack ensures comfort while you work. Multiple nozzles are included for ultimate versatility: brass adjustable nozzle (enables stream to cone patterns), wide flat fan nozzle (red, 0.25 GPM, angled at 70°), narrow flat fan nozzle (yellow, 0.15 GPM, angled at 30°), high volume wide fan (brown), jet stream (orange) and foaming (black). Also accepts TeeJet nozzles.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
6,059 global ratings

Customers say

Customers like the performance, quality and ease of assembly of the pump sprayer. For example, they mention that it works well, the different sprayer tips work extremely well and that it's easy to assemble and use. That said, some complain about the handle and the ease of use.

AI-generated from the text of customer reviews

491 customers mention473 positive18 negative

Customers are satisfied with the performance of the sprayer. They mention that the different sprayer tips work extremely well and haven't clogged once. The pump mechanism still works and the seals are still good. The product is easy to use and provides good feedback on when the tank is up to.

"...I used 11 gallon of chemical first time I used the sprayer and it worked great...." Read more

"...The different sprayer tips work extremely well and haven't clogged once...." Read more

"...The hand pump is easy to use, and gives good feedback on when your tank is up to pressure...." Read more

"The issue I have with this sprayer is that although the entire system is really great, they kind of short sheeted us on the shoulder harness aspect...." Read more

466 customers mention379 positive87 negative

Customers like the quality of the sprayer. They say it's an excellent sprayer, it hasn't disappointed, and it sprays great. The spray pattern is strong enough to reach at least 10 feet or more, making spraying much easier. Customers also mention that the nozzle is good and it sprayed evenly.

"...The wide mouth on the tank with a screen allows you to pour chemical easily into the sprayer and the screen catches anything that might fall into it..." Read more

"...It sprays more than other sprayers I have used (which I personally like) but there a flow limiter attachment if you want to use it." Read more

"My initial impressions are that this is an excellent sprayer. I am always looking at design. Someone has put a lot of thought into this sprayer...." Read more

"...Other than that, its all good, easy to put together, and use." Read more

308 customers mention290 positive18 negative

Customers find the pump sprayer easy to assemble and use. They say it's a simple, effective sprayer with parts that wear out. The backpack came fully assembled and ready to use. The steel frame allows you to set it down easily, and the shoulder harness was properly preassembled. The straps make it stay in place while using the sprayer. Customers also mention that the filter on the wand is easy to get to and the nozzle is easy remove.

"...Clean up was easy, the filter on the wand is easy to get to, the nozzle is easy to remove...." Read more

"...The steel frame allows you to set it down easily, but isn't too heavy on your back...." Read more

"...or kill you just to make the lawyers happy.. This is a well-written manual in real English. With useful information like nozzle selection." Read more

"...Other than that, its all good, easy to put together, and use." Read more

167 customers mention143 positive24 negative

Customers like the value of the pump sprayer. They mention that it is a good product for a homeowner and worth the weight.

"...If you are looking for a good sprayer, at a fair price that does the job intended then look no further than this sprayer...." Read more

"...it, let me make it easy on you - Buy it, This sprayer is worth every single penny...." Read more

"I've had this sprayer for two years. It's a very good value, holds a lot of product compared to my old 1 gallon sprayer and is comfortable enough..." Read more

"...You’ll see this on other sprayers. Overall good value. I’m satisfied." Read more

144 customers mention129 positive15 negative

Customers like the comfort of the pump sprayer. They mention that it has great lumbar support, and takes the pressure off of their back. They also appreciate the constant pressure in the tank, and the fact that it pumps right on their back, without the need to take it off or put it down.

"...It takes the pressure off of your back not only from not having to carry a smaller sprayer, but also because the sprayer heads spray as far as you..." Read more

"...a lot of product compared to my old 1 gallon sprayer and is comfortable enough that I don't notice the weight even when full...." Read more

"...it is a lot more comfortable than others i have had...." Read more

"...This model is great - no comparison. First, this model is quite comfortable, I had zero issues regarding leaks, and the handle makes it convenient...." Read more

156 customers mention102 positive54 negative

Customers are mixed about the leaking of the pump sprayer. Some mention that there have been no leaks whatsoever, the hose is durable, and should not leak down your back. However, others say that the cap is noted for leaking and the air tank inside came loose.

"...No leaks, 5 or 6 pumps pressurizes the tank with excellent spray coverage...." Read more

"...Like the strainer in the tank to keep debris out. It is porous enough to quickly run a hose into it without flooding over, and yet fine enough to..." Read more

"...Their straps are not as comfortable. Their cap is noted for leaking, and when you have some nasty stuff in there the last thing you want it doing..." Read more

"So far I like this product. I belive it to be well designed to avoid leaks compared to other products I have used...." Read more

121 customers mention84 positive37 negative

Customers are mixed about the ease of use of the pump sprayer. Some mention it has great pressure, it's easy to pump, and the straps are comfortable. However, others say that they have to keep pumping pretty consistently to keep the pressure up, it has a few issues with clogging, and it'd be awkward to try to pick it up off the ground and strap it on.

"Does great spraying to kill weeds. Easy to pump and does great job covering a wide area. Love being able to put on my back instead of carrying it...." Read more

"...This one is made of heavy duty materials and the pump action is solid...." Read more

"...With a tank full of spray on your back it is hard to maneuver in close quarters...." Read more

"...I love the long 21" wand, and the fact that I can pump continually while I walk..." Read more

105 customers mention31 positive74 negative

Customers are dissatisfied with the handle of the pump sprayer. They mention that it sticks out and complicates storage. Some customers also mention that the handle does not fold up for compact storage. Overall, some customers find the handle to be a little lose and problematic.

"...It sticks straight out, so it’s not the exact model shown in the picture. I couldn’t find that one." Read more

"...The only thing that could be improved is that the pump handle does not fold up for compact storage." Read more

"...Someone has put a lot of thought into this sprayer. The pump handle can be mounted on either side of the body depending on whether you are left..." Read more

"...Only negative it the handle doesn't fold out of the way for storage when not in use, that was the why I gave it 4 stars." Read more

Superior Features Over Others
5 Stars
Superior Features Over Others
First thing I noticed was the profile. That curved contour makes a big difference in maneuverability when wearing in tight spaces.The next thing was the PSI regulator. Its position on the nozzle makes it easy to switch during jobs when more pressure is needed to reach areas further away from wand.On most sprayers, one of my biggest pet peeves is the hook that attaches the shoulder straps to the sprayer. You’re heaving a full tank onto your shoulder, and damn! It disconnects. You have to set the tank down, reconnect, and go through the whole motion again! THIS SPRAYER USES A STRAP, not a hook! *head-smack* GENIUS!The only thing that would have made this perfect is the ability to stow with the pump handle in a vertical position. It sticks straight out, so it’s not the exact model shown in the picture. I couldn’t find that one.
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Top reviews from the United States

Reviewed in the United States on September 28, 2019
Style: SprayerVerified Purchase
10 people found this helpful
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Reviewed in the United States on June 24, 2023
Style: SprayerVerified Purchase
21 people found this helpful
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Reviewed in the United States on May 31, 2018
Style: SprayerVerified Purchase
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5.0 out of 5 stars Excellence prayer at a good price. Extremely well designd.
Reviewed in the United States on May 31, 2018
My initial impressions are that this is an excellent sprayer. I am always looking at design. Someone has put a lot of thought into this sprayer. The pump handle can be mounted on either side of the body depending on whether you are left handed or right handed. Assembly time was 5 minutes max. Mounting the appropriate spray nozzle, and the one bolt through the spray handle Shaft. There were a number of little touches that I like. Like the shaft mounting nut having a nylon insert so it wouldn't back off and lose your Bolt. Like the strainer in the tank to keep debris out. It is porous enough to quickly run a hose into it without flooding over, and yet fine enough to keep out grass and debris. The chest harness was well-designed. I especially like the cross strap between the shoulder straps. That takes a lot of wear and tear off of your shoulders. Completely full, it is difficult to put on. I learned that by filling it on a raised surface and just backing up to it made a lot more sense than trying to lift it up and swing it around my back. Then wand also sprays a clean fan right off the bat. I sprayed about 2 gallons of clean water through it just to test it out, and it dispense them quickly and efficiently. The hand pump is easy to use, and gives good feedback on when your tank is up to pressure. I don't know about longevity, but right out of the box this is a great sprayer. It was by no means the cheapest sprayer, but it wasn't the most expensive either. I bought it because of generally good reviews. I think I have made a good choice. There was actually some of the manual that was useful. Usually they waste 20 pages in telling you that the product that you just purchased can maim or kill you just to make the lawyers happy.. This is a well-written manual in real English. With useful information like nozzle selection.
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9 people found this helpful
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Reviewed in the United States on June 18, 2023
Style: SprayerVerified Purchase
4 people found this helpful
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Top reviews from other countries

peter white
5.0 out of 5 stars Really reliable very comfortable harness brilliant product for its price.
Reviewed in the United Kingdom on June 4, 2020
Style: SprayerVerified Purchase
2 people found this helpful
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Timothy Duong
5.0 out of 5 stars No leaks, One Pump = lots of spray, works really well
Reviewed in Australia on July 5, 2021
Style: SprayerVerified Purchase
2 people found this helpful
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charles chisholm
5.0 out of 5 stars Great quality sprayer
Reviewed in the United Kingdom on February 14, 2021
Style: SprayerVerified Purchase
One person found this helpful
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Dave
5.0 out of 5 stars surprising easy to use
Reviewed in Australia on September 16, 2022
Style: SprayerVerified Purchase
MALCOLM STEWART
5.0 out of 5 stars Good Size.
Reviewed in the United Kingdom on October 3, 2020
Style: SprayerVerified Purchase