4-gallon sprayers offer enough volume of liquid to sustain even longer spraying. They are perfect for covering large areas, but can be used on a smaller garden as well of course. Actually, almost all of them are a backpack type – handheld units become way too heavy for carrying at this capacity.
Here we present you our most recommended models with ratings, prices and reviews:
Field King Professional 190328
Most recommended: Our best rated large garden sprayer – it offers great pressure (150 PSI), comfortable harness and a built-in agitator. Also it doesn’t leak.
Compact: Comes with the same capacity but a more sleek Euro design. It’s comfortable to wear as well, very easy to use and not overly expensive.
Motorized: If you don’t want to pump the handle to maintain pressure, this battery powered sprayer will do it for you. But it’s also a bit more pricey.
A common question is whether the full 4-gallon tank won’t be too heavy to carry on your back. And while women would probably want to fill only part of the tank to make the lifting up and carrying less demanding, most men will not encounter any problems even after a longer use.
The only problem might arise during lifting the sprayer with full tank from the ground – the solution is to simply fill it on a table or some another elevated place first and get into the harness from there. This way you easily avoid all the possible danger to your lower back and other parts of your body (caused by lifting a heavy object from the ground).
Comparison:
| Model | Price | Our rating  |
For | Pump | Capacity | PSI | Right/left hand | Weight |
|---|---|---|---|---|---|---|---|---|
 Field King Professional 190328 |
$77.35 |  |
 |
piston | 4 gal | 150 |  |
12.8 lbs |
 Chapin 61500 |
$72.90 | |
 |
piston | 4 gal | 40-60 |  |
10.6 lbs |
 My 4 Sons M4 |
$249.99 |  |
 |
battery powered | 4 gal | 60 | – | 12 lbs |
