Field King Max 190348 Backpack Sprayer Review

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If you want to be efficient and productive in the landscape industry, then quality products and tools are a necessity. This is true when it comes to pumping sprayers like the Field King Max backpack sprayer from D.B. Smith.

Though the Field King has been out there for a while with some very decent products but they are still in the shadow of other prominent brands. So, we will try to shed some light on this product. Let’s have an in-depth look at its features before you decide to purchase.

The features of Field King Max



Like most backpack sprayers, it has a standard size of 4-gallon tank. The internal no leak pump design makes it safer to use. The internal pump design will never leave you with harmful chemicals running down your back. Also, the internal pump does the work of a piston or diaphragm backpack.

The dimension of the product is 15 x 22.5 x 9.5 inches with a weight of 12.8 pounds. The patented pump design has minimal high wear parts that be repaired without tools in minutes.


A high-pressure piston pump gives you the ability to reach a pressure of up to 150 PSI. It includes a low-pressure regulator, allows for a consistent pressure of 25 PSI which is ideal for herbicides. This sprayer has a built-in internal paddle which is activated by pump action to keep them mixed and ready to spray. It features Viton brand gaskets and seals for maximum chemical resistance.

Another cool feature is the premium shut-off that offers a comfort grip, lockable trigger to prevent hand fatigue. Also, a removable in-line filter will help you to reduce clogging.


Each unit comes with four nozzles, including a brass adjustable nozzle, high and low flow volume flat fan nozzles, and a patented foaming nozzle. These nozzles help you to get different spraying possibilities. The nozzles are interchangeable and you’ll definitely like better than having one nozzle with 4 different modules.

Moreover, a filtration basket is attached with a large tank opening to keep large debris out of the tank while filling.


The sprayer is equipped with a new comfort harness system with thick padded shoulder straps as well as lumbar support to limit fatigue caused by extended use. The pump handle folds away for easy storage and can be configured for left or right-handed pump operation. This unit also has a built-in carry handle for easy lifting.

When it comes to comfort Field King makes absolutely no compromise. To ensure more comfort, it has a secure handle with no slack for a threaded bolt to attach which is far superior to a typical cotter pin found in competing products.

Here is the list of most recommended backpack sprayer reviews

Benefits of using the Field King Max

There are so many benefits that you can have by using this exceptional sprayer. Here are some of the benefits that we have included.

  • You can use roundup or other brand concentrates to kill grass and weeds. However, the benefit of using Filed King Max is that you can save money every season by refilling it instead of buying the disposable sprayers.
  • This sprayer can clean anything such as your car, siding, deck, boats, etc. Also, the sprayer can be used with all water-based cleaners.
  • You’ll be able to keep annoying pests away by using water-based pesticides to control roaches, ants, fleas, mosquitoes, and other insects.
  • Lastly, water your garden, the flowers, and vegetables efficiently beyond the reach of your hose.


To be honest, there isn’t anything that stood out as a problem with the Field King Max. However, a couple of people on Amazon complaining about leaks. Often times it’s seen that leak can come from poor maintenance.

A little too much pumping is required especially when you need to go up to 150 psi, as this is a manual pump sprayer after all.


Q) How does it differ from the Field King Pro 190328?

Ans. The Field King Max 190348 backpack sprayer is an upgraded version of the Field King Professional 190328.

Q) How far can I spray with this sprayer?

Ans. The distance of sprayer to spray will vary from model to model. However, most backpack sprayers tend to spray from 20 to 25 feet.

Q) Is this sprayer comfortable to carry?

Ans. Yes, they are designed with adjustable padded straps and some varieties and even have the addition of lumbar supports to be as comfortable as possible for you.


If you don’t want to waste money on disposable chemical sprayers then King Max 190348 is the perfect choice for you. We highly recommend you to buy a Field King Max.

You’ll love the excellent spray coverage, large capacity, and comfortable straps that will finish your work in a fraction of time. The impressive build quality and durability ensure you this could be the last backpack sprayer that you’ll have to buy. 

Also Read: Chapin 61900 4-Gallon Tree and Turf Pro Backpack Sprayer Review

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