Stihl Pressure Sprayer Review
Stihl pressure sprayers are known for robust build quality and reliable performance, making them a top choice for homeowners and professionals alike. This review covers the key models, their specs, and what real owners say to help you decide if a Stihl sprayer is right for you.
Quick answer
Stihl pressure sprayers, like the SG 51 and SG 20, are built for durability and consistent spray pressure. The SG 51 is the best overall for larger properties, while the SG 20 is the best budget pick for smaller yards and spot treatments.
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Research updated June 2026.
Stihl SG 51 Backpack Sprayer
Durable, comfortable, and reliable for large-scale spraying.
Stihl SG 51 Backpack Sprayer
Best OverallPros
- Comfortable backpack design with padded straps
- High 90 PSI for consistent spray
- Durable piston pump lasts years
Cons
- Heavier than some competitors
- Price is higher than budget models
The Stihl SG 51 is a workhorse for large gardens and professional use. Its 5.1-gallon tank reduces refill stops, and the piston pump maintains steady pressure without constant pumping. Owners consistently praise its build quality and long service life.
While it is heavier than plastic sprayers, the ergonomic backpack frame distributes weight well. The SG 51 is ideal for anyone who needs a reliable, high-capacity sprayer for weed control, fertilizing, or pest management on properties over an acre.
Stihl SG 20 Handheld Sprayer
Best Budget / Small YardsPros
- Lightweight and easy to carry
- Durable brass wand and nozzle
- Lower price point
Cons
- Smaller tank requires refills
- Less comfortable for long sessions
The Stihl SG 20 is a compact handheld sprayer perfect for small gardens, patios, and spot treatments. Its 2.1-gallon tank is manageable for most homeowners, and the piston pump delivers up to 75 PSI for a fine, even mist. Owners appreciate the brass components that resist corrosion.
It is not ideal for large areas due to the smaller capacity and lack of backpack straps. However, for targeted spraying of weeds or plants, the SG 20 is a reliable and affordable Stihl option that holds up well over time.
Stihl SG 31 Backpack Sprayer
Best Mid-RangePros
- Good balance of capacity and weight
- Same 90 PSI as SG 51
- Comfortable shoulder straps
Cons
- Not as large as SG 51
- Price is close to SG 51
The Stihl SG 31 offers a middle ground between the SG 20 and SG 51. With a 3.7-gallon tank and 90 PSI pressure, it is suitable for medium-sized properties. The backpack design is comfortable, and the piston pump provides consistent output without frequent repumping.
Owner reviews note it is a good choice for those who want backpack convenience but do not need the full 5-gallon capacity. The SG 31 is slightly lighter than the SG 51, making it easier to carry for extended periods.
Stihl SG 15 Handheld Sprayer
Best for Light UsePros
- Very lightweight and compact
- Easy to store and transport
- Affordable price
Cons
- Small tank limits use
- Lower max pressure
The Stihl SG 15 is the smallest sprayer in the lineup, designed for light tasks like watering plants or applying small amounts of weed killer. Its 1.6-gallon tank is enough for a small garden or balcony. The piston pump is simple to operate and maintain.
While it lacks the capacity and pressure of larger models, the SG 15 is a great choice for homeowners who only need a sprayer occasionally. It is also a good backup unit for quick spot treatments.
Stihl SG 71 Backpack Sprayer
Best for ProfessionalsPros
- Largest capacity in the lineup
- Highest 100 PSI pressure
- Professional-grade build
Cons
- Heavy even when empty
- High price point
The Stihl SG 71 is the top-tier backpack sprayer for demanding professionals. With a 6.6-gallon tank and 100 PSI, it handles large-scale spraying jobs efficiently. The ergonomic frame and padded straps help manage the weight, but it is still a heavy unit when full.
Owner feedback highlights its exceptional durability and consistent pressure. It is best suited for commercial landscapers or property owners with very large acreage who need maximum capacity and reliability.
| Model | Best For | Capacity | Max Pressure | Rating |
|---|---|---|---|---|
| SG 51 | Best Overall | 5.1 gal | 90 PSI | 4.7/5 |
| SG 20 | Best Budget | 2.1 gal | 75 PSI | 4.5/5 |
| SG 31 | Mid-Range | 3.7 gal | 90 PSI | 4.6/5 |
| SG 15 | Light Use | 1.6 gal | 70 PSI | 4.3/5 |
| SG 71 | Professional | 6.6 gal | 100 PSI | 4.8/5 |
Who is a Stihl Pressure Sprayer For?
Stihl pressure sprayers are designed for users who prioritize durability and consistent performance over low cost. They are ideal for homeowners with medium to large gardens, as well as professional landscapers and groundskeepers. The backpack models are particularly suited for extended spraying sessions, while handheld models work well for smaller tasks. Stihl sprayers are not the cheapest option, but their build quality often leads to a longer lifespan compared to budget brands.
Performance and Pressure Consistency
All Stihl sprayers use a piston pump, which delivers more consistent pressure than diaphragm pumps found in many cheaper sprayers. The SG 51 and SG 31 maintain 90 PSI even as the tank empties, reducing the need for constant pumping. Owner reviews frequently mention that Stihl sprayers provide a fine, even mist that covers plants or weeds effectively without excessive dripping. The brass wand and nozzle on most models also resist clogging and corrosion.
Build Quality and Durability
Stihl sprayers are built with high-density polyethylene tanks that resist cracking and UV damage. The piston pump is serviceable, and replacement parts are widely available. Owners report that Stihl sprayers often last 5-10 years with proper maintenance, which is longer than many competitors. The SG 71 and SG 51 are particularly noted for their robust construction. However, the plastic pump handle on some models can be a weak point if overtightened.
What to Check Before Buying a Stihl Pressure Sprayer
Before purchasing, consider the size of your property and the type of spraying you do. For large areas, a backpack model like the SG 51 or SG 71 is essential to avoid fatigue. For spot treatments, a handheld SG 20 or SG 15 is more practical. Check the maximum pressure rating: 70-75 PSI is fine for most herbicides and fertilizers, but 90-100 PSI is better for reaching tall plants or trees. Also, ensure replacement parts like nozzles and seals are available for your model.
Mistakes to Avoid When Using a Stihl Sprayer
A common mistake is not cleaning the sprayer after each use, which can clog the nozzle and damage the pump. Always rinse with clean water and run it through the system. Another error is over-pressurizing the tank: Stihl sprayers have a pressure relief valve, but repeatedly pumping beyond the recommended limit can wear out seals faster. Finally, do not use harsh chemicals not recommended for your model, as they can degrade the tank or wand material.
Alternatives to Stihl Pressure Sprayers
If Stihl sprayers are outside your budget, consider brands like Karcher or Ryobi, which offer similar capacity at lower prices. Karcher sprayers often have higher PSI ratings for power washing tasks, while Ryobi models are battery-powered for easier operation. For professional use, Solo sprayers are a direct competitor to Stihl, with comparable build quality and slightly lower weight. However, Stihl's dealer network and parts availability give it an edge in long-term support.
FAQs
Are Stihl pressure sprayers worth the price?
Yes, for users who need durability and consistent pressure, Stihl sprayers offer excellent long-term value compared to cheaper alternatives.
What is the best Stihl sprayer for a large garden?
The Stihl SG 51 backpack sprayer is the best choice for large gardens due to its 5.1-gallon capacity and 90 PSI pressure.
Can I use bleach or harsh chemicals in a Stihl sprayer?
It is not recommended, as bleach and harsh chemicals can damage the seals and tank. Stick to approved herbicides, fertilizers, and pesticides.
How do I clean a Stihl pressure sprayer?
Rinse the tank with clean water, pump it through the wand, and empty the tank. Disassemble the nozzle for thorough cleaning if needed.
What is the warranty on Stihl sprayers?
Stihl offers a 2-year warranty on most sprayers for non-commercial use, covering defects in materials and workmanship.
Are Stihl sprayers made in Germany?
Stihl is a German company, but many sprayers are manufactured in the USA or other countries. Check the label on your specific model.
How much pressure does a Stihl SG 20 produce?
The Stihl SG 20 produces a maximum pressure of 75 PSI, suitable for most garden spraying tasks.
Can I repair a Stihl sprayer myself?
Yes, many parts like seals, nozzles, and pump kits are available for DIY repair. Stihl dealers also offer service.
What is the difference between SG 31 and SG 51?
The SG 31 has a 3.7-gallon tank, while the SG 51 has a 5.1-gallon tank. Both produce 90 PSI, but the SG 51 is heavier.
Is a backpack sprayer better than a handheld?
Backpack sprayers are better for large areas and long sessions due to better weight distribution and larger tanks.
Do Stihl sprayers come with a wand?
Yes, all Stihl sprayers include a wand and nozzle. Some models offer adjustable spray patterns.
How long do Stihl sprayers last?
With proper maintenance, Stihl sprayers can last 5-10 years or more, depending on usage frequency and care.
Our verdict
The Stihl SG 51 is the best overall pressure sprayer for its combination of capacity, pressure, and comfort. For budget-conscious buyers, the Stihl SG 20 offers reliable performance at a lower price. Both models deliver the build quality Stihl is known for.