Best Boom Sprayer Options for a Zero-Turn Mower
The best boom sprayer for a zero-turn mower depends on how the mower can tow or mount equipment and how much lawn you need to cover. Tow-behind units such as the NorthStar 21-gallon and 31-gallon sprayers combine a tank, pump, and boom; the Guardian offers a narrower 7-foot swath. The standalone boom kits may suit owners who already have a sprayer, but their mounting requirements need careful checking. Confirm your mower’s towing and attachment specifications before choosing any option.
| Product | Best suited for | Key detail |
|---|---|---|
| NorthStar 21-Gallon | Smaller jobs and wide coverage | 120-inch boom; 21-gallon tank |
| NorthStar 31-Gallon | Longer spraying sessions | 120-inch boom; 31-gallon tank |
| Guardian 25-Gallon | Moderate coverage needs | 7-foot swath |
| Six-Nozzle Boom Kit | Owners with an existing sprayer | 122-inch bar; adjustable nozzles |
| Workhorse Boom Kit | Compatible 2-inch receiver setups | 140-inch coverage |
NorthStar 21-Gallon Tow-Behind Sprayer
Best for: Homeowners who want a complete tow-behind sprayer with a relatively compact tank and broad boom coverage. Its 21-gallon UV-resistant tank, 2.2 GPM pump, and 120-inch overall boom width make it a candidate for treating larger lawn areas in fewer passes.
The pump is rated for 70 PSI and continuous-duty operation. The spring-loaded breakaway boom is designed to flex on impact, and independent left and right nozzle controls allow coverage to be adjusted. The cart has a powder-coated steel frame and 12-inch pneumatic wheels.
Consideration: The overall boom width is listed as 120 inches, while effective coverage is 80 inches. Check whether the mower can tow the loaded unit and confirm the attachment arrangement before buying.
NorthStar 31-Gallon Tow-Behind Sprayer
Best for: Buyers who prioritize fewer refills and need a larger tank than the 21-gallon NorthStar model. It has the same listed 2.2 GPM, 70 PSI continuous-duty pump and 120-inch overall boom width, with 80 inches of effective spray width.
The boom has spring-loaded breakaway arms and independent left and right nozzle controls. The 31-gallon tank includes molded-in volume markers and a large fill lid; the sprayer rides on a powder-coated steel cart with 12-inch pneumatic wheels.
Consideration: A larger tank means more liquid to tow when full. Confirm the mower’s towing limits and available attachment before selecting this model over the smaller NorthStar.
Guardian 25-Gallon Pull-Behind Sprayer
Best for: Buyers seeking a middle-sized tank and a narrower stated broadcast swath than the NorthStar boom models. The translucent 25-gallon tank has raised volume markings, and the product lists a 7-foot broadcast spray swath.
It also supports spot spraying up to 20 feet horizontally, according to the product details. That gives buyers a choice between broadcast coverage and targeted spraying, subject to the sprayer’s setup and operating instructions.
Consideration: The provided listing details do not state pump flow, pressure, or boom-control features. Compare the full product specifications and verify mower attachment requirements if those details matter to your application.
Six-Nozzle Adjustable Boom Kit
Best for: Owners who already have a compatible sprayer and want a boom with individually adjustable nozzles. The kit includes a 122-inch bar, two heavy-duty hooks, and six nozzles with separate on/off switches and adjustable flow.
The listing states that the fan-shaped overlapping pattern can provide up to 145 inches of coverage. Nozzle patterns adjust from fine mist to a wide fan. This can be useful when varying coverage across rows or other target areas.
Consideration: The listed hooks are described for ATV, UTV, or trailer racks, not specifically zero-turn mowers. Check mounting fit and how the kit connects to your existing spray system before choosing it.
Workhorse Seven-Nozzle Boom Kit
Best for: Buyers with an existing sprayer and a compatible 2-inch receiver setup who want a fold-out boom. The kit has seven nozzles and lists coverage of up to 140 inches. Its stated purpose includes upgrading an existing spot sprayer for broader application.
The manufacturer describes the construction as heavy-duty and resistant to weather, chemical solutions, corrosion, and liquids. The wide coverage may help reduce the number of passes compared with a narrower boom, depending on setup and spraying conditions.
Consideration: It is a hitch-mount kit for a 2-inch receiver, and zero-turn mowers do not necessarily have that receiver. Confirm mounting compatibility and the requirements for connecting the boom to your sprayer.
Buying Guide: How To Choose A Zero-Turn Boom Sprayer
Will the sprayer attach to your mower?
Start with the attachment, not the spray width. Tow-behind sprayers and hitch-mount boom kits use different arrangements. Check your mower manual for towing guidance and inspect the machine for an approved connection point. The supplied product details do not establish that these options fit every zero-turn mower.
How much tank capacity do you need?
A larger tank can mean fewer refills, but it also carries more liquid. Compare the 21-, 25-, and 31-gallon options with the area you treat and your mower’s towing guidance. Do not assume tank size alone indicates how much ground one load will cover; application rate and spray setup also matter.
How wide should the boom be?
Use the listed effective spray width when available, rather than relying only on the physical bar or overall width. NorthStar lists 120 inches overall and 80 inches effective; Guardian lists a 7-foot swath. The six-nozzle kit lists up to 145 inches of coverage, while Workhorse lists 140 inches.
Do you need a complete sprayer or just a boom?
The NorthStar and Guardian products are pull-behind sprayers with tanks. The six-nozzle and Workhorse products are boom kits, so they are better suited to buyers who already have a compatible spray source and can meet the mounting requirements. Check the complete listing for included components before purchase.
Frequently Asked Questions
Can any boom sprayer be used with a zero-turn mower?
No. Compatibility depends on the mower’s towing capacity, attachment point, and the sprayer’s mounting design. Verify both manufacturers’ specifications before use.
Which listed model has the widest stated coverage?
The six-nozzle kit lists up to 145 inches of coverage. The Workhorse kit lists 140 inches; the figures may describe different configurations, so compare full specifications.
Which option has the largest tank?
The NorthStar tow-behind model has the largest stated tank at 31 gallons, compared with 25 gallons for Guardian and 21 gallons for the smaller NorthStar.
Are the boom kits complete sprayers?
The product details describe the six-nozzle and Workhorse products as boom kits. Confirm whether your existing sprayer and required connections are suitable before purchasing.