Greenworks Pro 3000 PSI GPW3001
#1 in ElectricFull review
One of the most powerful plug-in washers, for homeowners who want near gas cleaning without engine upkeep. Flow is still well below gas.
Amazon $309.99$309.99
The Greenworks Pro 3000 PSI GPW3001 rates 3.6 among electric pressure washers; the Simpson Clean Machine 2900 PSI rates 3.0 among gas ones. The Simpson Clean Machine 2900 PSI costs $31.25 less ($278.74 vs $309.99).
Simpson Clean Machine 2900 PSI
#15 in GasFull review
A cheap, light gas washer for occasional deck and patio cleaning. Buyers who wash a lot of concrete will want more flow and a longer warranty.
Amazon $278.74$278.74
Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different power source classes (electric and gas), and each is scored against the reference points for its own class, so a rating says how well each does among its own power source peers. How we rank explains each factor.
| Factor weight | Greenworks Pro 3000 PSI GPW3001 | Simpson Clean Machine 2900 PSI |
|---|---|---|
| Overall rating | 3.6/5 | 3.0/5 |
| Value 35% | 42 $93.94 per 1,000 cleaning units ($309.99, 3,300) | 86 $40.05 per 1,000 cleaning units ($278.74, 6,960) |
| Cleaning power 30% | 100 3,300 cleaning units (3,000 PSI x 1.1 GPM) | 33 6,960 cleaning units (2,900 PSI x 2.4 GPM) |
| Hose 10% | 33 25 ft hose | 33 25 ft hose |
| Warranty 25% | 50 3-year warranty | 0 1-year warranty |
Specifications
| Greenworks Pro 3000 PSI GPW3001 | Simpson Clean Machine 2900 PSI | |
|---|---|---|
| Cleaning | ||
| Pressure | 3,000 PSI | 2,900 PSI |
| Flow | 1.1 GPM | 2.4 GPM |
| Cleaning units | 3,300 | 6,960 |
| Nozzles included | 5 | 4 |
| Detergent | Onboard tank | Siphon tube |
| Power | ||
| Power | Electric | Gas |
| Engine or motor | 14 A, brushless | 170 cc (Simpson CT170) |
| Pump | Axial cam | Axial cam |
| CARB compliant | - | No |
| Build | ||
| Hose | 25 ft | 25 ft |
| Power cord | 35 ft | - |
| Weight | - | 50 lb |
| Warranty | 3 years | 1 year |