Looking for a pull-behind sprayer to equip your lawn mower? This guide spotlights five top options that balance capacity, portability, and spray reach for residential and light commercial use. Best for larger lawns, quick coverage, or precise spot spraying, these machines help you apply herbicides, fertilizers, or water efficiently. Each product is chosen for durability, spray width, and user-friendly tanks. Buyers should consider tank size, pump flow, and boom design to match their mowing routines and terrain.
Summary table of selected products
| Product | Tank | Flow | Best For | Key Benefit |
|---|---|---|---|---|
| Grass Guardian 25 Gallon Pull-Behind | 25 gal | 1.1 GPM | Medium to large lawns | 7′ swath for broad coverage |
| NorthStar Tow-Behind 21-Gallon | 21 gal | 2.2 GPM | Heavy-duty mowing sites | Durable NSQ pump, wide boom |
| NorthStar Tow-Behind 31-Gallon | 31 gal | 2.2 GPM | Large properties | Higher capacity, same robust pump |
| FIMCO Trailer Sprayer 15 Gallon | 15 gal | 1.2 GPM | Smaller lawns & tight spots | Lightweight, reliable pump |
| Grass Guardian 15 Gallon Pull-Behind | 15 gal | 1.1 GPM | Small to medium lawns | Compact and nimble |
Grass Guardian 25 Gallon Pull-Behind Trailer Sprayer
Best for medium to large lawns, this 25-gallon translucent tank features raised volume markings for quick monitoring. It offers a 7-foot broadcast spray swath and spot spray capability up to 20 feet horizontally, making it a strong all-around choice for spraying herbicides or liquid fertilizers. The larger capacity reduces refill frequency during bigger jobs, while the clear tank helps you see chemical levels at a glance. Choose this if you need substantial coverage without frequent stops.
Best for: homeowners with sizable lawns or small commercial crews needing consistent wide-area spraying. Limitation: heavier unit may require more effort on steep terrain or tight spaces.
NorthStar Tow-Behind 21-Gallon Boom Sprayer
This model raises the bar with a 2.2 GPM pump and 70 PSI, built for all-day professional use. The NSQ Series on-demand pump features durable Viton valves and a Santoprene diaphragm for reliable chemical resistance and fast priming. A 120-inch spray width with a 80-inch effective coverage makes it ideal for quickly treating lawns, fields, or pastures. Its 21-gallon tank is UV-resistant and sits on a rugged steel cart with 12-inch pneumatic wheels. Choose this if you need robust performance on larger properties.
Best for: contractors or serious homeowners who require high flow and durable, wide-area coverage. Caution: heavier build may be harder to maneuver in tight spaces.
NorthStar 31-Gallon Tow-Behind Sprayer
This larger-capacity option extends the same NSQ pump performance to a 31-gallon tank, providing 2.2 GPM at up to 70 PSI. The 120-inch boom width and independent nozzle control support precise coverage—especially useful along fence lines or edges where you want controlled spray without overspray. The tank’s UV resistance and a durable powder-coated steel cart help it endure regular outdoor use. Best for: extensive lawn areas or mixed property types where larger volume reduces refill frequency.
Best for: property managers or homeowners with expansive yards who value continuous operation. Limitation: higher upfront weight may require a larger vehicle for transport in some setups.
FIMCO Trailer Sprayer With 2 Nozzle Boom
The 15-gallon FIMCO trailer sprayer offers a compact solution with a 1.2 GPM pump and a dual-nozzle boom. Its internally fan-cooled motor and chemically resistant valves extend pump life in routine lawn care tasks. This unit is better for small or irregularly shaped lawns where a lighter, more maneuverable sprayer is advantageous. Choose this if you need a budget-friendly, easy-to-move option for precise, spot-to-broadcast mixing.
Best for: small to medium lawns or hobbyists who spray around obstacles. Limitation: smaller tank means more frequent refills on larger properties.
Homestead 12 Gallon Spot & Broadcast Trailer Sprayer
This 12-gallon unit is ideal for small to mid-sized lawns and food plots. It features a 5-foot spray swath from a single boom nozzle, making it a convenient choice for quick, uniform coverage. The included Everflo 1.1 GPM pump supports steady performance for routine lawn applications. Best for: homeowners needing a compact sprayer for regular, lighter-duty spraying. Limitation: limited reach compared to larger tanks.
Master Manufacturing 25 Gallon Deluxe Sprayer
Equipped with a 2.2 GPM pump and adjustable spray coverage up to 7 feet, this deluxe model supports 25-foot vertical spot spray and 30-foot horizontal reach with a versatile spray gun. The pressure regulating system helps maintain consistent output across applications. Best for: users who want broad control over spray patterns and reliable performance for larger yards. Caution: ensure the tank is compatible with the chemicals used in your area.
Grass Guardian 15 Gallon Pull-Behind Trailer Sprayer
This 15-gallon option mirrors the 25-gallon Grass Guardian design but in a smaller footprint. It offers a 7-foot broadcast swath and 20-foot spot spray capability. Best for: homeowners with smaller lawns or those who prioritize a lighter, more maneuverable sprayer. Limitation: smaller capacity may require more frequent refills on larger properties.
Buying Guide
- Tank capacity: How large is your lawn, and how often do you spray? Larger tanks reduce refills but add weight and bulk.
- Pump flow and pressure: Do you need high GPM for fast coverage, or lower flow for spot treatments?
- Boom design: Is a 120-inch wide boom essential, or is a 7-foot swath sufficient for your layout?
- Tank material and UV resistance: Will the sprayer see sun exposure or chemical use that requires durability?
- Portability and mounting: Is a tow-behind unit compatible with your mower or ATV, and how easily can you maneuver it on your property?
- Maintenance: Are valves, diaphragms, and seals accessible for routine care and chemical compatibility?
FAQ
- What is the best sprayer size for a medium lawn? A 15–25 gallon tank is commonly versatile for medium lawns, balancing weight and coverage.
- Why choose a sprayer with a breakaway boom? Breakaway booms protect the equipment by resisting damage from obstacles and allowing quick recovery.
- Is a higher GPM always better? Not necessarily; higher GPM speeds coverage but can lead to over-application if not matched to the job.
- Can I use herbicides with all pull-behind sprayers? Most are compatible, but always verify chemical compatibility with the tank and seals.
- Do these sprayers fit on standard mower hitch attachments? Many are designed for tow-behind use, but verify hitch compatibility with your mower or tractor.
- What maintenance is required after spraying chemicals? Rinse the tank, clean filters, and inspect seals to prevent residue buildup and corrosion.