The Greenworks 3000 PSI Brushless Electric is the strongest all-around choice for most homeowners, while the Simpson Clean Machine 3400 is the better fit when gas-powered performance and higher stated pressure matter most.
Quick Verdict
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Electric pressure washers win on convenience, compact design, and straightforward startup. The Greenworks 3000 PSI Brushless Electric leads this group with 3000 PSI, 2.0 GPM, a 14-amp TruBrushless motor, a 25-foot kink-resistant hose, and several spray tips. The Westinghouse ePX3050 is a practical budget-friendly option for routine household cleaning, while the Sun Joe SPX100-GO is especially appealing for users who want a portable machine with onboard nozzle storage and a foam bottle.
Gas pressure washers win when maximum cleaning output is the priority. The Simpson Clean Machine 3400 produces 3400 PSI and 2.5 GPM from a 208 cc CRX engine, giving it the highest stated pressure and flow in this roundup. It is well suited to driveways, decks, siding, fencing, patio furniture, and other demanding outdoor jobs, although its gas engine makes it a different ownership proposition from the plug-in electric models.
Greenworks 3000 PSI Brushless Electric — Best Overall Electric
The Greenworks 3000 PSI Brushless Electric offers the most balanced combination of output and usability among the electric models listed here. Its 14-amp TruBrushless motor produces 3000 PSI and 2.0 GPM, with a stated maximum of 3300 cleaning units. That places it well above the Westinghouse in stated pressure and flow, while keeping the basic plug-in format of an electric pressure washer. JettFlow technology is designed to deliver up to 50% more flow for reaching higher areas and rinsing quickly.
Its included equipment also supports a broad range of household jobs. The machine comes with a metal gun, a 25-foot Uberflex kink-resistant hose, and 15°, 25°, and 40° spray tips. The manufacturer states that the pressure and flow claims were tested and verified by an independent lab. The main limitation is that, as an electric model, it is tied to its power connection, and the supplied data does not describe a gas-style engine or fuel-based operation. For homeowners who want strong electric performance for decks, siding, driveways, and similar surfaces, it is the most complete choice here.
Westinghouse ePX3050 — Best Budget Electric
The Westinghouse ePX3050 is a compact, user-friendly electric pressure washer aimed at common home-maintenance tasks. It delivers 2100 max PSI and 1.76 max GPM at the lowest pressure setting, while its rated performance is 1800 PSI and 1.2 rated GPM. That distinction is important: its maximum figures describe peak capability, whereas the rated figures provide a more practical indication of its stated operating performance. The manufacturer lists it for decks, sidewalks, siding, fences, garage floors, cars, and patio furniture.
This model emphasizes convenience as much as cleaning power. It has a 120-volt AC electric motor, a maintenance-free axial pump with auto stop, a low 26-inch profile, 5-inch never-flat wheels, and a 35-foot GFCI cord. A soap applicator is included, adding useful flexibility for vehicle and outdoor-surface cleaning. Its lower stated output means it is not the first choice for the most demanding jobs, but its compact design and longer cord make it an appealing budget-friendly option for routine residential use.
Simpson Clean Machine 3400 — Best Gas
The Simpson Clean Machine 3400 is the performance leader in this comparison by stated pressure and flow. Its 208 cc CRX engine drives an OEM Technologies axial cam pump that produces 3400 PSI and 2.5 GPM. That combination is designed for substantial homeowner tasks, including driveways, decks, siding, fencing, patio furniture, and cars. The gas-powered configuration makes it fundamentally different from the electric models, and it is the best match here for users who prioritize cleaning output over the compact simplicity of a plug-in machine.
The engine includes easy-start functionality and low-oil shutdown, while the pump has a thermal relief valve to help prevent overheating. The 25-foot Simpson MorFlex high-pressure hose is described as kink- and abrasion-resistant, with a non-marring design intended to help protect finished surfaces. This is a 49-state-compliant model and is not for sale in California. Because it uses a gas engine, owners should expect a different maintenance routine from the electric options, even though the axial cam pump itself is described as maintenance-free.
Sun Joe SPX100-GO — Best Portable Electric
The Sun Joe SPX100-GO is built around accessible operation and adaptable spray coverage. Its 13-amp motor is designed to provide consistent cleaning power for dirt, grime, mud, and mildew on driveways, patios, decks, fences, and vehicles. Unlike models in this roundup with clearly stated PSI and GPM figures, the supplied information does not provide pressure or flow numbers for the SPX100-GO. It is therefore better evaluated by its controls and included accessories rather than by a direct output comparison.
Four quick-connect nozzles are included: 0°, 15°, 25°, and 40°. These allow the spray to move from a pinpoint jet to a wider, gentler fan, and the nozzles store onboard for convenient access. The machine also includes an onboard detergent system with a 13.53-ounce foam bottle for applying pressure-washer-specific detergent through the wand. The supplied data identifies a 20-foot hose, but the remaining reach specification is incomplete. Even so, its nozzle storage, foam bottle, and electric format make it a practical portable option for lighter household cleaning and vehicle care.
Electric vs Gas: How to Choose
- Power: The Simpson has the highest stated output at 3400 PSI and 2.5 GPM. Greenworks follows with 3000 PSI and 2.0 GPM. Westinghouse lists 2100 max PSI and 1.76 max GPM, with lower rated figures of 1800 PSI and 1.2 GPM. Sun Joe’s supplied data does not state PSI or GPM.
- Maintenance: Greenworks, Westinghouse, and Sun Joe use electric motors. Westinghouse specifically lists a maintenance-free axial pump, while Simpson lists a maintenance-free axial cam pump but still has a gas engine with low-oil shutdown.
- Noise and operating environment: The electric models avoid the gas-engine format, which may be preferable when a simpler, less engine-focused setup is desired. The supplied product data does not provide measured noise levels, so no specific noise ranking can be confirmed.
- Use cases: Simpson is the strongest fit for demanding outdoor cleaning. Greenworks is the most capable electric choice for broad household use. Westinghouse suits decks, sidewalks, siding, fences, garage floors, cars, and patio furniture. Sun Joe is oriented toward flexible nozzle use, detergent application, and portable household cleaning.
- Reach and storage: Greenworks includes a 25-foot hose, Simpson includes a 25-foot hose, and Westinghouse provides a 35-foot GFCI cord. Sun Joe includes a 20-foot hose and onboard nozzle storage.
- Temperature limits: Greenworks lists a maximum inlet water temperature of 104°F (40°C). No inlet-temperature specification is provided for the other models.
Which One Should You Buy?
- Buy the Greenworks 3000 PSI Brushless Electric if you want the best overall electric combination of stated pressure, flow, accessories, and hose design.
- Buy the Westinghouse ePX3050 if you want a compact, budget-friendly electric washer for routine home, vehicle, patio, and fence cleaning.
- Buy the Simpson Clean Machine 3400 if you need the highest stated pressure and flow for demanding outdoor surfaces and prefer a gas-powered machine.
- Buy the Sun Joe SPX100-GO if onboard nozzle storage, four spray patterns, and detergent application are more important to you than comparing stated PSI and GPM.
- Choose electric if you prefer a plug-in motor and want to avoid selecting a model around a gas engine.
- Choose gas if your priority is the strongest stated cleaning output in this group and you are comfortable with the requirements of a gas-powered machine.
FAQ
Is an electric pressure washer strong enough for driveways?
Yes, the supplied models are listed for driveway cleaning. Greenworks provides the highest stated electric output at 3000 PSI and 2.0 GPM, while Westinghouse is also listed for sidewalks, garage floors, and other hard surfaces. Sun Joe is described for driveways as well, although its PSI and GPM figures are not provided in the available data.
Is gas better than electric for pressure washing?
Gas offers the highest stated performance in this roundup. The Simpson Clean Machine 3400 produces 3400 PSI and 2.5 GPM, exceeding the listed output of the electric models. Electric can be the better choice when compact operation, a plug-in motor, and simpler everyday use are more important than maximum stated cleaning power.
Which pressure washer is best for cars and patio furniture?
All four models are associated with vehicle or patio-furniture cleaning in the supplied information. The Westinghouse is specifically listed for cars and patio furniture and includes a soap applicator. Simpson is also listed for both uses, while Greenworks includes multiple spray tips. Sun Joe adds four nozzle patterns and a foam bottle, giving it useful flexibility for detergent-based vehicle cleaning.
