A simple, well warrantied washer for cars, patios and decks. The WPX3400 usually costs little more and cleans noticeably faster.
Amazon $293.02The Westinghouse WPX2700 is the better pressure washer overall, rated 3.1 to 3.0. The Westinghouse WPX2700 leads on warranty. The Simpson Clean Machine 2900 PSI wins on value and cleaning power. The Simpson Clean Machine 2900 PSI costs $14.28 less ($278.74 vs $293.02).
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 $278.74Prices 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.
Which should you buy?
- Choose the Westinghouse WPX2700 for warranty (3-year warranty vs 1-year warranty).
- Choose the Simpson Clean Machine 2900 PSI for value ($40.05 per 1,000 cleaning units ($278.74, 6,960) vs $47.19 per 1,000 cleaning units ($293.02, 6,210)) and cleaning power (6,960 cleaning units (2,900 PSI x 2.4 GPM) vs 6,210 cleaning units (2,700 PSI x 2.3 GPM)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every gas pressure washer; a clear win is highlighted. How we rank explains each one.
| Factor weight | Westinghouse WPX2700 | Simpson Clean Machine 2900 PSI |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Value 35% | 68 $47.19 per 1,000 cleaning units ($293.02, 6,210) | 86 $40.05 per 1,000 cleaning units ($278.74, 6,960) |
| Cleaning power 30% | 20 6,210 cleaning units (2,700 PSI x 2.3 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
| Westinghouse WPX2700 | Simpson Clean Machine 2900 PSI | |
|---|---|---|
| Cleaning | ||
| Pressure | 2,700 PSI | 2,900 PSI |
| Flow | 2.3 GPM | 2.4 GPM |
| Cleaning units | 6,210 | 6,960 |
| Nozzles included | 5 | 4 |
| Detergent | Onboard tank | Siphon tube |
| Power | ||
| Power | Gas | Gas |
| Engine or motor | 212 cc (Westinghouse OHV) | 170 cc (Simpson CT170) |
| Pump | Axial cam | Axial cam |
| CARB compliant | No | No |
| Build | ||
| Hose | 25 ft | 25 ft |
| Weight | 63 lb | 50 lb |
| Warranty | 3 years | 1 year |
