Suttner ST-3600 1/2" 21 GPM 8700 PSI Stainless Steel Pressure Washer Spray Gun

Maximum Strength, High Flow Rate, and German-Engineered Precision

The Suttner ST-3600 1/2" 21 GPM 8700 PSI Stainless Steel Pressure Washer Spray Gun is built for contractors who demand maximum strength, proven quality, and unmatched durability from their equipment. Designed using producing German engineered components and backed by Suttner’s long history of manufacturing world renowned industrial components, this spray gun is engineered to excel in the toughest environments, the highest pressure, and the most demanding professional applications.

With an impressive flow rate of up to 21 GPM, a massive 8700 PSI rating, and stainless-steel materials throughout, the ST-3600 is the spray gun you choose when failure isn’t an option. Whether you’re running a commercial pressure washer, handling extreme-duty rinsing, powering high-flow systems, or working with heavy-duty cleaning nozzles and lances, the ST-3600 is designed to outperform every other spray gun on the market.

German-Engineered Strength Designed for High-Demand Professionals

Suttner is known for producing German engineered components that elevate reliability across the pressure washer industry. The ST-3600 is a testament to Suttner’s decades-long craftsmanship, built with german engineered components that deliver precision, longevity, and structural strength.

The forged brass housing, stainless-steel internals, and impact resistant plastic shell around the handle give the trigger gun exceptional resistance to damage, vibration, and abuse. When you hold this gun, you can feel the difference: it’s engineered for real-world contractors who face extreme abuse applications, heavy water volume, and elevated pressure on a daily basis.

The ST-3600 is also part of the elite lineup of suttner trigger guns, preferred by operators worldwide for their long service life and outstanding performance.

High-Flow and High-Pressure Performance

This spray gun is built for heavy water movement. Contractors using high-flow hydraulic systems, large-diameter hoses, and oversized nozzles rely on the ST-3600 because its flow rate capabilities are unmatched.

Key Flow and Pressure Ratings

• Max PSI: 8700 PSI

• Max GPM: 21 GPM

• Inlet: 1/2" FPT

• Outlet: 1/2" FPT

• Temperature: 150°C

• Material: Stainless steel

If your system requires 12 GPM, 12 gpm, or even higher flow up to 21 GPM, this spray gun is built for the job. Many trigger guns struggle under these volumes, but Suttner’s unitized valve design, robust internals, and industrial components make the ST-3600 capable of handling extreme power without premature wear.

The Easy Pull Trigger – Comfort, Control, and Nearly Half the Effort

One of the most impressive features of the ST-3600 is its easy pull trigger. Suttner’s engineering team designed this trigger gun so that the operator uses nearly half the effort required by traditional high-pressure spray guns. This dramatically reduces hand fatigue and allows contractors to work longer without stress injuries. For people working long hours, this difference is huge.

The trigger mechanism was designed with:

• Optimal positioning

• A naturally aligned handle constructed for comfort

• Reduced force requirement

• A comfortable grip for long spray cycles

When you combine these features with Suttner’s precision-balanced internal valves, you get one of the easiest opening spray guns ever used in commercial cleaning.

Built for Abuse, Designed for Repairs

High-flow, high-pressure contractors know the truth: no spray gun lasts forever. However, Suttner designs its trigger guns for easy repair, extended durability, and quick turnaround.

The ST-3600’s internal unitized valve simplifies service and reduces downtime for operators and technicians. If you’re in the field and need to perform a fast repair, this gun makes it as simple as possible.

The combination of stainless steel, forged brass housing, and robust German engineering ensures you get a trigger gun that is:

• Durable

• Resistant to impact

• Built for high heat

• Designed to protect internal valves from wear

• Able to handle aggressive chemicals

• Resistant to abuse during daily operations

That’s why guns suttner like the ST-3600 are considered the best long-term investment in the industrial cleaning shop.

Comfort and Control When Holding the Trigger

Because contractors hold and operate their spray guns for hours per day, Suttner focused heavily on ergonomics. The ST-3600 provides a comfortable grip, a balanced frame, and a lightweight feel—even though it’s made from heavy-duty stainless steel and impact resistant plastic.

The design enhances:

• Stability during rinsing

• Better trigger cycling

• Smooth water transitions

• Reduced hand and forearm fatigue

This is the trigger gun for professionals who prioritize quality, comfort, and long-term performance.

Rear Entry Design for Better Hose Alignment

The rear entry configuration improves hose routing, reduces strain, and gives the operator optimal positioning regardless of their stance or spray angle. Rear-entry guns also reduce failure rates caused by hose torque and pivoting.

With a fpt outlet and 1/2" inlet, you can easily connect the gun to:

• High-flow hoses

• Commercial lances

• Specialized nozzles

• Long-length spray bars

This versatility supports nearly any professional cleaning applications you can imagine.

Built for Extreme Conditions and Professional Demands

If you run a commercial pressure washer, high-volume wash bay, industrial cleaning business, or a specialty contracting company, you need a spray gun that can handle extreme abuse applications.

The ST-3600 thrives in:

• Industrial equipment washing

• Agricultural rinsing

• Large-surface rinse-down

• Marine and dock cleaning

• Manufacturing line sanitation

• Fleet washing

• Any job where open flow and reliability matter

Its maximum strength design ensures it holds up in situations where other spray guns fail.

Trusted Worldwide and Built for Professionals

Suttner’s reputation is unmatched. The ST-3600 represents decades of producing German engineered components that dominate the professional cleaning industry.

The brand suttner is known throughout the country, and these products are used worldwide. Contractors consistently review Suttner as one of the highest-value manufacturers available — and the ST-3600 maintains that legacy.

When customers need:

• The strongest trigger gun

• The best ergonomic feel

• The highest flow rate

• The longest-lasting industrial components

• A trusted product line

• Reasonable prices for premium tools

…they choose Suttner.

Why Contractors Choose the ST-3600

The ST-3600 is the preferred spray gun for contractors because it offers:

• Extreme PSI and GPM performance

• Lightweight handling for long work periods

• Superior durability

• Proven Suttner engineering

• Better long-term value than budget products

• A comfortable grip provide ease during high-pressure spraying

• A wide variety of types of applications

• Excellent pairing with high-flow lances, nozzles, and hoses

This item is the clear winner for contractors who require a heavy-duty cleaning gun capable of outperforming everything else.

Order Today and Upgrade Your System

If you want a spray gun that delivers real performance, real ease, and real security, the Suttner ST-3600 is the leader.

You can order now, add it to your cart, and shop with confidence knowing you’re investing in a tool built to handle the hardest challenge in the field.

This is the professional-grade trigger gun for serious contractors — and it’s worth every bit of the price.