(20) PISTOLET À GÂCHETTE GIANT 21290C 10GPM 5K

Powerful, Comfortable Trigger Gun for 5000 PSI, 10 GPM Cleaning

The Giant 21290C is a heavy-duty pressure washer trigger gun built for professionals who refuse to compromise on performance. It can handle a maximum pressure of 5000 PSI and a max flow rate of 10 GPM, making it one of the most capable trigger spray gun options available for commercial and industrial cleaning. The Giant 21290C is designed for commercial and industrial applications - from car wash bays and fleet washing to agriculture and facility maintenance. Its primary promise is straightforward: precise high-pressure control, reduced hand fatigue across long shifts, and the longevity to survive years of daily abuse in demanding environments.

What Makes the Giant 21290C Different

Most pressure washer guns on the market are designed for occasional use. Their triggers stiffen or bind after a few hundred cycles, seals fail under hot water or chemical detergents, and cheap plastic housings crack after a single drop onto concrete. For a busy car wash or industrial operation, that kind of failure rate means constant replacements and lost revenue.

The Giant 21290C is engineered for continuous-duty environments where downtime isn't an option.

• Industrial-Grade Internal Components – Where budget spray gun options rely on soft metals and rubber seals that degrade quickly, the 21290C uses brass and stainless steel internals that resist corrosion from hot water, alkaline detergents, and acidic cleaners. This directly extends service life and reduces the quantity of replacement parts you'll need over time.

• Optimized Discharge Tube Orientation – Unlike "straight" guns that force your wrist into an awkward angle, the 21290C's angled discharge fitting positions the lance naturally, reducing wrist torque and improving control. Over eight-hour shifts, this design difference is the gap between productive work and repetitive strain.

• Engineered for High-Cycle Life – The trigger mechanism, cam, control bolt, and valve seat are built for thousands of cycles per day - the kind of use you'd see in a self-serve bay or automated wash system. The Giant 21290C has a 4:1 burst pressure ratio, meaning it's engineered with a safety margin far exceeding industry minimums, with burst ratings reaching approximately 20,000 PSI.

Product Details

• Maximum Pressure – Rated up to 5000 PSI, suitable for the most demanding cleaning tasks including concrete restoration, fleet degreasing, and heavy machinery wash-downs.

• Maximum Flow – 10 GPM capacity supports the higher-output pumps common in commercial wash systems and industrial rigs.

• Temperature Capability – The maximum temperature for the Giant 21290C is 300°F. The Giant 21290C can be used for hot-water pressure washing, making it ideal for engine degreasing, sanitizing, and cutting through grease and tar.

• Inlet and Outlet Connections – 3/8" FNPT inlet and 1/4" FPT outlet, matching the most common hose, lance, and nozzle configurations in professional use.

• Construction Materials – Brass discharge fitting, stainless steel and brass internal components (valve seat, ball, control bolt), and a rugged outer body designed for industrial environments.

• Weight and Ergonomics – Approximately 1.8 lb (29.28 oz) with a balanced feel and contoured handle shape intended to minimize wrist strain during extended sessions.

• Country of Manufacture – Made in the USA, reflecting Giant's commitment to quality control and domestic manufacturing standards.

Frequently Asked Questions

Will it work with my existing pressure washer? The 21290C uses standard 3/8" FNPT inlet and 1/4" FPT outlet connections, which are compatible with most commercial and pro-grade pressure washer hoses and lances. Confirm that your machine's flow and pressure ratings fall within the gun's 10 GPM / 5000 PSI maximum before installing.

Can I run hot water through this gun? Absolutely. The Giant 21290C is built for hot-water and detergent use, rated for temperatures up to 300°F. This makes it well-suited for degreasing engines, removing tar, and any cleaning task where heated water and chemical solutions are required.

Ready to Upgrade Your Pressure Washing Control?

The Giant 21290C trigger gun delivers what professional operators actually need: consistent 5000 PSI performance, hot-water capability up to 300°F, and a build quality that holds up through thousands of daily cycles. It means cleaner results, less operator fatigue, and far fewer interruptions from broken or leaking guns.